Finding the Fourth Proportional to 3,513.06, 5,269.72 and 915.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.06 : 5,269.72 = 915.92 : x
2. Step 2: Convert to fraction form
   3,513.06/5,269.72 = 915.92/x
3. Step 3: Cross multiply
   3,513.06x = 5,269.72 × 915.92
4. Step 4: Simplify right side
   3,513.06x = 4,826,641.94
5. Step 5: Solve for x
   x = 4,826,641.94/3,513.06
6. Step 6: Final answer
   x = 1,373.91