Finding the Fourth Proportional to 1,220,751.50, 1,684,456.82 and 676,891.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,220,751.50 : 1,684,456.82 = 676,891.25 : x
2. Step 2: Convert to fraction form
   1,220,751.50/1,684,456.82 = 676,891.25/x
3. Step 3: Cross multiply
   1,220,751.50x = 1,684,456.82 × 676,891.25
4. Step 4: Simplify right side
   1,220,751.50x = 1,140,194,082,460.83
5. Step 5: Solve for x
   x = 1,140,194,082,460.83/1,220,751.50
6. Step 6: Final answer
   x = 934,009.98