Finding the Fourth Proportional to 1,434.58, 1,979.72 and 837.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.58 : 1,979.72 = 837.22 : x
2. Step 2: Convert to fraction form
   1,434.58/1,979.72 = 837.22/x
3. Step 3: Cross multiply
   1,434.58x = 1,979.72 × 837.22
4. Step 4: Simplify right side
   1,434.58x = 1,657,461.18
5. Step 5: Solve for x
   x = 1,657,461.18/1,434.58
6. Step 6: Final answer
   x = 1,155.36