Finding the Fourth Proportional to 1,941.50, 2,679.20 and 1,057.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.50 : 2,679.20 = 1,057.29 : x
2. Step 2: Convert to fraction form
   1,941.50/2,679.20 = 1,057.29/x
3. Step 3: Cross multiply
   1,941.50x = 2,679.20 × 1,057.29
4. Step 4: Simplify right side
   1,941.50x = 2,832,691.37
5. Step 5: Solve for x
   x = 2,832,691.37/1,941.50
6. Step 6: Final answer
   x = 1,459.02