Finding the Fourth Proportional to 2,089.17, 3,133.50 and 839.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.17 : 3,133.50 = 839.71 : x
2. Step 2: Convert to fraction form
   2,089.17/3,133.50 = 839.71/x
3. Step 3: Cross multiply
   2,089.17x = 3,133.50 × 839.71
4. Step 4: Simplify right side
   2,089.17x = 2,631,225.55
5. Step 5: Solve for x
   x = 2,631,225.55/2,089.17
6. Step 6: Final answer
   x = 1,259.46