Finding the Fourth Proportional to 2,995.18, 4,493.45 and 915.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,995.18 : 4,493.45 = 915.48 : x
2. Step 2: Convert to fraction form
   2,995.18/4,493.45 = 915.48/x
3. Step 3: Cross multiply
   2,995.18x = 4,493.45 × 915.48
4. Step 4: Simplify right side
   2,995.18x = 4,113,665.89
5. Step 5: Solve for x
   x = 4,113,665.89/2,995.18
6. Step 6: Final answer
   x = 1,373.43