Finding the Fourth Proportional to 3,417.12, 5,125.86 and 1,077.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,417.12 : 5,125.86 = 1,077.31 : x
2. Step 2: Convert to fraction form
   3,417.12/5,125.86 = 1,077.31/x
3. Step 3: Cross multiply
   3,417.12x = 5,125.86 × 1,077.31
4. Step 4: Simplify right side
   3,417.12x = 5,522,140.24
5. Step 5: Solve for x
   x = 5,522,140.24/3,417.12
6. Step 6: Final answer
   x = 1,616.02