Finding the Fourth Proportional to 924,128.17, 1,281,821.23 and 899,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   924,128.17 : 1,281,821.23 = 899,548.72 : x
2. Step 2: Convert to fraction form
   924,128.17/1,281,821.23 = 899,548.72/x
3. Step 3: Cross multiply
   924,128.17x = 1,281,821.23 × 899,548.72
4. Step 4: Simplify right side
   924,128.17x = 1,153,060,646,715.33
5. Step 5: Solve for x
   x = 1,153,060,646,715.33/924,128.17
6. Step 6: Final answer
   x = 1,247,728.06