Finding the Fourth Proportional to 880,841.34, 1,321,254.72 and 523,488.78

Step by Step Solution

1. Step 1: Write the proportion equation
   880,841.34 : 1,321,254.72 = 523,488.78 : x
2. Step 2: Convert to fraction form
   880,841.34/1,321,254.72 = 523,488.78/x
3. Step 3: Cross multiply
   880,841.34x = 1,321,254.72 × 523,488.78
4. Step 4: Simplify right side
   880,841.34x = 691,662,021,442.04
5. Step 5: Solve for x
   x = 691,662,021,442.04/880,841.34
6. Step 6: Final answer
   x = 785,228.84