Finding the Fourth Proportional to 1,434.98, 1,981.06 and 875.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.98 : 1,981.06 = 875.58 : x
2. Step 2: Convert to fraction form
   1,434.98/1,981.06 = 875.58/x
3. Step 3: Cross multiply
   1,434.98x = 1,981.06 × 875.58
4. Step 4: Simplify right side
   1,434.98x = 1,734,566.90
5. Step 5: Solve for x
   x = 1,734,566.90/1,434.98
6. Step 6: Final answer
   x = 1,208.77