Finding the Fourth Proportional to 1,540.71, 2,126.34 and 943.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540.71 : 2,126.34 = 943.59 : x
2. Step 2: Convert to fraction form
   1,540.71/2,126.34 = 943.59/x
3. Step 3: Cross multiply
   1,540.71x = 2,126.34 × 943.59
4. Step 4: Simplify right side
   1,540.71x = 2,006,400.93
5. Step 5: Solve for x
   x = 2,006,400.93/1,540.71
6. Step 6: Final answer
   x = 1,302.26