Finding the Fourth Proportional to 2,100.96, 3,152.06 and 868.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.96 : 3,152.06 = 868.44 : x
2. Step 2: Convert to fraction form
   2,100.96/3,152.06 = 868.44/x
3. Step 3: Cross multiply
   2,100.96x = 3,152.06 × 868.44
4. Step 4: Simplify right side
   2,100.96x = 2,737,374.99
5. Step 5: Solve for x
   x = 2,737,374.99/2,100.96
6. Step 6: Final answer
   x = 1,302.92