Finding the Fourth Proportional to 2,355.17, 3,255.71 and 1,887.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.17 : 3,255.71 = 1,887.71 : x
2. Step 2: Convert to fraction form
   2,355.17/3,255.71 = 1,887.71/x
3. Step 3: Cross multiply
   2,355.17x = 3,255.71 × 1,887.71
4. Step 4: Simplify right side
   2,355.17x = 6,145,810.61
5. Step 5: Solve for x
   x = 6,145,810.61/2,355.17
6. Step 6: Final answer
   x = 2,609.50