Finding the Fourth Proportional to 2,915.88, 4,374.35 and 1,160.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915.88 : 4,374.35 = 1,160.32 : x
2. Step 2: Convert to fraction form
   2,915.88/4,374.35 = 1,160.32/x
3. Step 3: Cross multiply
   2,915.88x = 4,374.35 × 1,160.32
4. Step 4: Simplify right side
   2,915.88x = 5,075,656.73
5. Step 5: Solve for x
   x = 5,075,656.73/2,915.88
6. Step 6: Final answer
   x = 1,740.69