Finding the Fourth Proportional to 2,286,728.89, 3,155,664.29 and 1,254,215.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286,728.89 : 3,155,664.29 = 1,254,215.61 : x
2. Step 2: Convert to fraction form
   2,286,728.89/3,155,664.29 = 1,254,215.61/x
3. Step 3: Cross multiply
   2,286,728.89x = 3,155,664.29 × 1,254,215.61
4. Step 4: Simplify right side
   2,286,728.89x = 3,957,883,406,166.49
5. Step 5: Solve for x
   x = 3,957,883,406,166.49/2,286,728.89
6. Step 6: Final answer
   x = 1,730,805.71