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Finding the Fourth Proportional to 1,472.62, 2,207.38 and 1,125.20

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Solution

The fourth proportional to 1,472.62, 2,207.38 and 1,125.20 is: 1,686.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.62 : 2,207.38 = 1,125.20 : x
  2. Step 2: Convert to fraction form
    1,472.62/2,207.38 = 1,125.20/x
  3. Step 3: Cross multiply
    1,472.62x = 2,207.38 × 1,125.20
  4. Step 4: Simplify right side
    1,472.62x = 2,483,743.98
  5. Step 5: Solve for x
    x = 2,483,743.98/1,472.62
  6. Step 6: Final answer
    x = 1,686.62

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