Finding the Fourth Proportional to 3,915.52, 5,877.12 and 1,864.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.52 : 5,877.12 = 1,864.96 : x
2. Step 2: Convert to fraction form
   3,915.52/5,877.12 = 1,864.96/x
3. Step 3: Cross multiply
   3,915.52x = 5,877.12 × 1,864.96
4. Step 4: Simplify right side
   3,915.52x = 10,960,593.72
5. Step 5: Solve for x
   x = 10,960,593.72/3,915.52
6. Step 6: Final answer
   x = 2,799.27