Finding the Fourth Proportional to 3,113.31, 4,666.86 and 1,263.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.31 : 4,666.86 = 1,263.25 : x
2. Step 2: Convert to fraction form
   3,113.31/4,666.86 = 1,263.25/x
3. Step 3: Cross multiply
   3,113.31x = 4,666.86 × 1,263.25
4. Step 4: Simplify right side
   3,113.31x = 5,895,410.90
5. Step 5: Solve for x
   x = 5,895,410.90/3,113.31
6. Step 6: Final answer
   x = 1,893.62