Finding the Fourth Proportional to 1,013,200.17, 1,521,538.94 and 899,604.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013,200.17 : 1,521,538.94 = 899,604.69 : x
2. Step 2: Convert to fraction form
   1,013,200.17/1,521,538.94 = 899,604.69/x
3. Step 3: Cross multiply
   1,013,200.17x = 1,521,538.94 × 899,604.69
4. Step 4: Simplify right side
   1,013,200.17x = 1,368,783,566,441.63
5. Step 5: Solve for x
   x = 1,368,783,566,441.63/1,013,200.17
6. Step 6: Final answer
   x = 1,350,950.79