Finding the Fourth Proportional to 1,502.69, 2,073.60 and 839.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.69 : 2,073.60 = 839.52 : x
2. Step 2: Convert to fraction form
   1,502.69/2,073.60 = 839.52/x
3. Step 3: Cross multiply
   1,502.69x = 2,073.60 × 839.52
4. Step 4: Simplify right side
   1,502.69x = 1,740,828.67
5. Step 5: Solve for x
   x = 1,740,828.67/1,502.69
6. Step 6: Final answer
   x = 1,158.48