Finding the Fourth Proportional to 2,089.59, 2,881.29 and 1,426.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.59 : 2,881.29 = 1,426.80 : x
2. Step 2: Convert to fraction form
   2,089.59/2,881.29 = 1,426.80/x
3. Step 3: Cross multiply
   2,089.59x = 2,881.29 × 1,426.80
4. Step 4: Simplify right side
   2,089.59x = 4,111,024.57
5. Step 5: Solve for x
   x = 4,111,024.57/2,089.59
6. Step 6: Final answer
   x = 1,967.38