Finding the Fourth Proportional to 3,391.50, 5,085.29 and 1,050.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391.50 : 5,085.29 = 1,050.89 : x
2. Step 2: Convert to fraction form
   3,391.50/5,085.29 = 1,050.89/x
3. Step 3: Cross multiply
   3,391.50x = 5,085.29 × 1,050.89
4. Step 4: Simplify right side
   3,391.50x = 5,344,057.61
5. Step 5: Solve for x
   x = 5,344,057.61/3,391.50
6. Step 6: Final answer
   x = 1,575.72