Finding the Fourth Proportional to 2,168.86, 3,252.71 and 608.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.86 : 3,252.71 = 608.77 : x
2. Step 2: Convert to fraction form
   2,168.86/3,252.71 = 608.77/x
3. Step 3: Cross multiply
   2,168.86x = 3,252.71 × 608.77
4. Step 4: Simplify right side
   2,168.86x = 1,980,152.27
5. Step 5: Solve for x
   x = 1,980,152.27/2,168.86
6. Step 6: Final answer
   x = 912.99