Finding the Fourth Proportional to 1,434.26, 1,979.27 and 837.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.26 : 1,979.27 = 837.15 : x
2. Step 2: Convert to fraction form
   1,434.26/1,979.27 = 837.15/x
3. Step 3: Cross multiply
   1,434.26x = 1,979.27 × 837.15
4. Step 4: Simplify right side
   1,434.26x = 1,656,941.69
5. Step 5: Solve for x
   x = 1,656,941.69/1,434.26
6. Step 6: Final answer
   x = 1,155.26