Finding the Fourth Proportional to 1,502.25, 2,073.18 and 839.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.25 : 2,073.18 = 839.10 : x
2. Step 2: Convert to fraction form
   1,502.25/2,073.18 = 839.10/x
3. Step 3: Cross multiply
   1,502.25x = 2,073.18 × 839.10
4. Step 4: Simplify right side
   1,502.25x = 1,739,605.34
5. Step 5: Solve for x
   x = 1,739,605.34/1,502.25
6. Step 6: Final answer
   x = 1,158.00