Finding the Fourth Proportional to 2,995.60, 4,492.82 and 915.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,995.60 : 4,492.82 = 915.10 : x
2. Step 2: Convert to fraction form
   2,995.60/4,492.82 = 915.10/x
3. Step 3: Cross multiply
   2,995.60x = 4,492.82 × 915.10
4. Step 4: Simplify right side
   2,995.60x = 4,111,379.58
5. Step 5: Solve for x
   x = 4,111,379.58/2,995.60
6. Step 6: Final answer
   x = 1,372.47