Finding the Fourth Proportional to 2,517.76, 3,774.56 and 1,111.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.76 : 3,774.56 = 1,111.17 : x
2. Step 2: Convert to fraction form
   2,517.76/3,774.56 = 1,111.17/x
3. Step 3: Cross multiply
   2,517.76x = 3,774.56 × 1,111.17
4. Step 4: Simplify right side
   2,517.76x = 4,194,186.43
5. Step 5: Solve for x
   x = 4,194,186.43/2,517.76
6. Step 6: Final answer
   x = 1,665.84