Finding the Fourth Proportional to 2,387.89, 3,293.62 and 2,307.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.89 : 3,293.62 = 2,307.61 : x
2. Step 2: Convert to fraction form
   2,387.89/3,293.62 = 2,307.61/x
3. Step 3: Cross multiply
   2,387.89x = 3,293.62 × 2,307.61
4. Step 4: Simplify right side
   2,387.89x = 7,600,390.45
5. Step 5: Solve for x
   x = 7,600,390.45/2,387.89
6. Step 6: Final answer
   x = 3,182.89