Finding the Fourth Proportional to 1,116,345.05, 1,540,670.57 and 657,603.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,345.05 : 1,540,670.57 = 657,603.98 : x
2. Step 2: Convert to fraction form
   1,116,345.05/1,540,670.57 = 657,603.98/x
3. Step 3: Cross multiply
   1,116,345.05x = 1,540,670.57 × 657,603.98
4. Step 4: Simplify right side
   1,116,345.05x = 1,013,151,098,700.87
5. Step 5: Solve for x
   x = 1,013,151,098,700.87/1,116,345.05
6. Step 6: Final answer
   x = 907,560.88