Finding the Fourth Proportional to 942,086.89, 1,412,595.18 and 642,929.88

Step by Step Solution

1. Step 1: Write the proportion equation
   942,086.89 : 1,412,595.18 = 642,929.88 : x
2. Step 2: Convert to fraction form
   942,086.89/1,412,595.18 = 642,929.88/x
3. Step 3: Cross multiply
   942,086.89x = 1,412,595.18 × 642,929.88
4. Step 4: Simplify right side
   942,086.89x = 908,199,649,565.98
5. Step 5: Solve for x
   x = 908,199,649,565.98/942,086.89
6. Step 6: Final answer
   x = 964,029.60