Finding the Fourth Proportional to 1,502.72, 2,073.76 and 839.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.72 : 2,073.76 = 839.46 : x
2. Step 2: Convert to fraction form
   1,502.72/2,073.76 = 839.46/x
3. Step 3: Cross multiply
   1,502.72x = 2,073.76 × 839.46
4. Step 4: Simplify right side
   1,502.72x = 1,740,838.57
5. Step 5: Solve for x
   x = 1,740,838.57/1,502.72
6. Step 6: Final answer
   x = 1,158.46