Finding the Fourth Proportional to 1,502.84, 2,073.98 and 839.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.84 : 2,073.98 = 839.68 : x
2. Step 2: Convert to fraction form
   1,502.84/2,073.98 = 839.68/x
3. Step 3: Cross multiply
   1,502.84x = 2,073.98 × 839.68
4. Step 4: Simplify right side
   1,502.84x = 1,741,479.53
5. Step 5: Solve for x
   x = 1,741,479.53/1,502.84
6. Step 6: Final answer
   x = 1,158.79