Finding the Fourth Proportional to 1,502.88, 2,074.01 and 839.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.88 : 2,074.01 = 839.72 : x
2. Step 2: Convert to fraction form
   1,502.88/2,074.01 = 839.72/x
3. Step 3: Cross multiply
   1,502.88x = 2,074.01 × 839.72
4. Step 4: Simplify right side
   1,502.88x = 1,741,577.00
5. Step 5: Solve for x
   x = 1,741,577.00/1,502.88
6. Step 6: Final answer
   x = 1,158.83