Finding the Fourth Proportional to 2,915.87, 4,373.69 and 1,160.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915.87 : 4,373.69 = 1,160.80 : x
2. Step 2: Convert to fraction form
   2,915.87/4,373.69 = 1,160.80/x
3. Step 3: Cross multiply
   2,915.87x = 4,373.69 × 1,160.80
4. Step 4: Simplify right side
   2,915.87x = 5,076,962.61
5. Step 5: Solve for x
   x = 5,076,962.61/2,915.87
6. Step 6: Final answer
   x = 1,741.15