Finding the Fourth Proportional to 3,111.54, 4,294.18 and 1,785.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.54 : 4,294.18 = 1,785.30 : x
2. Step 2: Convert to fraction form
   3,111.54/4,294.18 = 1,785.30/x
3. Step 3: Cross multiply
   3,111.54x = 4,294.18 × 1,785.30
4. Step 4: Simplify right side
   3,111.54x = 7,666,399.55
5. Step 5: Solve for x
   x = 7,666,399.55/3,111.54
6. Step 6: Final answer
   x = 2,463.86