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Finding the Fourth Proportional to 1,639.96, 2,458.92 and 544.04

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Solution

The fourth proportional to 1,639.96, 2,458.92 and 544.04 is: 815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.96 : 2,458.92 = 544.04 : x
  2. Step 2: Convert to fraction form
    1,639.96/2,458.92 = 544.04/x
  3. Step 3: Cross multiply
    1,639.96x = 2,458.92 × 544.04
  4. Step 4: Simplify right side
    1,639.96x = 1,337,750.84
  5. Step 5: Solve for x
    x = 1,337,750.84/1,639.96
  6. Step 6: Final answer
    x = 815.72

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