Finding the Fourth Proportional to 3,127.30, 4,314.96 and 1,868.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,127.30 : 4,314.96 = 1,868.15 : x
2. Step 2: Convert to fraction form
   3,127.30/4,314.96 = 1,868.15/x
3. Step 3: Cross multiply
   3,127.30x = 4,314.96 × 1,868.15
4. Step 4: Simplify right side
   3,127.30x = 8,061,003.31
5. Step 5: Solve for x
   x = 8,061,003.31/3,127.30
6. Step 6: Final answer
   x = 2,577.63