Finding the Fourth Proportional to 2,517.81, 3,773.88 and 1,131.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.81 : 3,773.88 = 1,131.90 : x
2. Step 2: Convert to fraction form
   2,517.81/3,773.88 = 1,131.90/x
3. Step 3: Cross multiply
   2,517.81x = 3,773.88 × 1,131.90
4. Step 4: Simplify right side
   2,517.81x = 4,271,654.77
5. Step 5: Solve for x
   x = 4,271,654.77/2,517.81
6. Step 6: Final answer
   x = 1,696.58