Finding the Fourth Proportional to 689,061.38, 951,164.52 and 402,674.54

Step by Step Solution

1. Step 1: Write the proportion equation
   689,061.38 : 951,164.52 = 402,674.54 : x
2. Step 2: Convert to fraction form
   689,061.38/951,164.52 = 402,674.54/x
3. Step 3: Cross multiply
   689,061.38x = 951,164.52 × 402,674.54
4. Step 4: Simplify right side
   689,061.38x = 383,009,735,555.32
5. Step 5: Solve for x
   x = 383,009,735,555.32/689,061.38
6. Step 6: Final answer
   x = 555,842.70