Finding the Fourth Proportional to 1,016,061.08, 1,524,096.70 and 257,902.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016,061.08 : 1,524,096.70 = 257,902.77 : x
2. Step 2: Convert to fraction form
   1,016,061.08/1,524,096.70 = 257,902.77/x
3. Step 3: Cross multiply
   1,016,061.08x = 1,524,096.70 × 257,902.77
4. Step 4: Simplify right side
   1,016,061.08x = 393,068,760,677.86
5. Step 5: Solve for x
   x = 393,068,760,677.86/1,016,061.08
6. Step 6: Final answer
   x = 386,855.44