Finding the Fourth Proportional to 2,505.55, 3,457.57 and 1,371.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.55 : 3,457.57 = 1,371.17 : x
2. Step 2: Convert to fraction form
   2,505.55/3,457.57 = 1,371.17/x
3. Step 3: Cross multiply
   2,505.55x = 3,457.57 × 1,371.17
4. Step 4: Simplify right side
   2,505.55x = 4,740,916.26
5. Step 5: Solve for x
   x = 4,740,916.26/2,505.55
6. Step 6: Final answer
   x = 1,892.17