Finding the Fourth Proportional to 1,502.42, 2,073.38 and 839.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.42 : 2,073.38 = 839.34 : x
2. Step 2: Convert to fraction form
   1,502.42/2,073.38 = 839.34/x
3. Step 3: Cross multiply
   1,502.42x = 2,073.38 × 839.34
4. Step 4: Simplify right side
   1,502.42x = 1,740,266.57
5. Step 5: Solve for x
   x = 1,740,266.57/1,502.42
6. Step 6: Final answer
   x = 1,158.31