Finding the Fourth Proportional to 1,502.45, 2,073.59 and 839.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.45 : 2,073.59 = 839.35 : x
2. Step 2: Convert to fraction form
   1,502.45/2,073.59 = 839.35/x
3. Step 3: Cross multiply
   1,502.45x = 2,073.59 × 839.35
4. Step 4: Simplify right side
   1,502.45x = 1,740,458.39
5. Step 5: Solve for x
   x = 1,740,458.39/1,502.45
6. Step 6: Final answer
   x = 1,158.41