Finding the Fourth Proportional to 3,077.55, 4,618.17 and 1,131.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,077.55 : 4,618.17 = 1,131.12 : x
2. Step 2: Convert to fraction form
   3,077.55/4,618.17 = 1,131.12/x
3. Step 3: Cross multiply
   3,077.55x = 4,618.17 × 1,131.12
4. Step 4: Simplify right side
   3,077.55x = 5,223,704.45
5. Step 5: Solve for x
   x = 5,223,704.45/3,077.55
6. Step 6: Final answer
   x = 1,697.36