Finding the Fourth Proportional to 1,116,331.28, 1,672,384.01 and 659,556.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,331.28 : 1,672,384.01 = 659,556.50 : x
2. Step 2: Convert to fraction form
   1,116,331.28/1,672,384.01 = 659,556.50/x
3. Step 3: Cross multiply
   1,116,331.28x = 1,672,384.01 × 659,556.50
4. Step 4: Simplify right side
   1,116,331.28x = 1,103,031,732,631.86
5. Step 5: Solve for x
   x = 1,103,031,732,631.86/1,116,331.28
6. Step 6: Final answer
   x = 988,086.38