Finding the Fourth Proportional to 1,434.59, 1,979.88 and 875.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.59 : 1,979.88 = 875.44 : x
2. Step 2: Convert to fraction form
   1,434.59/1,979.88 = 875.44/x
3. Step 3: Cross multiply
   1,434.59x = 1,979.88 × 875.44
4. Step 4: Simplify right side
   1,434.59x = 1,733,258.59
5. Step 5: Solve for x
   x = 1,733,258.59/1,434.59
6. Step 6: Final answer
   x = 1,208.19