Finding the Fourth Proportional to 1,116,331.76, 1,672,384.76 and 659,557

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,331.76 : 1,672,384.76 = 659,557 : x
2. Step 2: Convert to fraction form
   1,116,331.76/1,672,384.76 = 659,557/x
3. Step 3: Cross multiply
   1,116,331.76x = 1,672,384.76 × 659,557
4. Step 4: Simplify right side
   1,116,331.76x = 1,103,033,075,151.32
5. Step 5: Solve for x
   x = 1,103,033,075,151.32/1,116,331.76
6. Step 6: Final answer
   x = 988,087.16