Finding the Fourth Proportional to 2,301.81, 3,452.76 and 915.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.81 : 3,452.76 = 915.09 : x
2. Step 2: Convert to fraction form
   2,301.81/3,452.76 = 915.09/x
3. Step 3: Cross multiply
   2,301.81x = 3,452.76 × 915.09
4. Step 4: Simplify right side
   2,301.81x = 3,159,586.15
5. Step 5: Solve for x
   x = 3,159,586.15/2,301.81
6. Step 6: Final answer
   x = 1,372.65