Finding the Fourth Proportional to 3,100.89, 4,652.71 and 1,255.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.89 : 4,652.71 = 1,255.61 : x
2. Step 2: Convert to fraction form
   3,100.89/4,652.71 = 1,255.61/x
3. Step 3: Cross multiply
   3,100.89x = 4,652.71 × 1,255.61
4. Step 4: Simplify right side
   3,100.89x = 5,841,965.94
5. Step 5: Solve for x
   x = 5,841,965.94/3,100.89
6. Step 6: Final answer
   x = 1,883.96