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Finding the Fourth Proportional to 4,789.92, 7,184.64 and 1,668.72

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Solution

The fourth proportional to 4,789.92, 7,184.64 and 1,668.72 is: 2,503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.92 : 7,184.64 = 1,668.72 : x
  2. Step 2: Convert to fraction form
    4,789.92/7,184.64 = 1,668.72/x
  3. Step 3: Cross multiply
    4,789.92x = 7,184.64 × 1,668.72
  4. Step 4: Simplify right side
    4,789.92x = 11,989,152.46
  5. Step 5: Solve for x
    x = 11,989,152.46/4,789.92
  6. Step 6: Final answer
    x = 2,503.00

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