Finding the Fourth Proportional to 1,401.92, 2,103.33 and 915.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.92 : 2,103.33 = 915.92 : x
2. Step 2: Convert to fraction form
   1,401.92/2,103.33 = 915.92/x
3. Step 3: Cross multiply
   1,401.92x = 2,103.33 × 915.92
4. Step 4: Simplify right side
   1,401.92x = 1,926,482.01
5. Step 5: Solve for x
   x = 1,926,482.01/1,401.92
6. Step 6: Final answer
   x = 1,374.17