Finding the Fourth Proportional to 1,253,111.74, 1,729,296.17 and 680,152.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,111.74 : 1,729,296.17 = 680,152.17 : x
2. Step 2: Convert to fraction form
   1,253,111.74/1,729,296.17 = 680,152.17/x
3. Step 3: Cross multiply
   1,253,111.74x = 1,729,296.17 × 680,152.17
4. Step 4: Simplify right side
   1,253,111.74x = 1,176,184,530,550.95
5. Step 5: Solve for x
   x = 1,176,184,530,550.95/1,253,111.74
6. Step 6: Final answer
   x = 938,611.05