Finding the Fourth Proportional to 1,108.96, 1,529.50 and 943.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.96 : 1,529.50 = 943.72 : x
2. Step 2: Convert to fraction form
   1,108.96/1,529.50 = 943.72/x
3. Step 3: Cross multiply
   1,108.96x = 1,529.50 × 943.72
4. Step 4: Simplify right side
   1,108.96x = 1,443,419.74
5. Step 5: Solve for x
   x = 1,443,419.74/1,108.96
6. Step 6: Final answer
   x = 1,301.60