Finding the Fourth Proportional to 1,517.86, 2,261.52 and 1,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.86 : 2,261.52 = 1,418.50 : x
2. Step 2: Convert to fraction form
   1,517.86/2,261.52 = 1,418.50/x
3. Step 3: Cross multiply
   1,517.86x = 2,261.52 × 1,418.50
4. Step 4: Simplify right side
   1,517.86x = 3,207,966.12
5. Step 5: Solve for x
   x = 3,207,966.12/1,517.86
6. Step 6: Final answer
   x = 2,113.48