Finding the Fourth Proportional to 2,168.52, 3,254.54 and 870.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.52 : 3,254.54 = 870.92 : x
2. Step 2: Convert to fraction form
   2,168.52/3,254.54 = 870.92/x
3. Step 3: Cross multiply
   2,168.52x = 3,254.54 × 870.92
4. Step 4: Simplify right side
   2,168.52x = 2,834,443.98
5. Step 5: Solve for x
   x = 2,834,443.98/2,168.52
6. Step 6: Final answer
   x = 1,307.09