Finding the Fourth Proportional to 3,785.31, 5,222.93 and 2,387.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785.31 : 5,222.93 = 2,387.25 : x
2. Step 2: Convert to fraction form
   3,785.31/5,222.93 = 2,387.25/x
3. Step 3: Cross multiply
   3,785.31x = 5,222.93 × 2,387.25
4. Step 4: Simplify right side
   3,785.31x = 12,468,427.71
5. Step 5: Solve for x
   x = 12,468,427.71/3,785.31
6. Step 6: Final answer
   x = 3,293.90