Finding the Fourth Proportional to 2,017.77, 3,025.64 and 922.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.77 : 3,025.64 = 922.91 : x
2. Step 2: Convert to fraction form
   2,017.77/3,025.64 = 922.91/x
3. Step 3: Cross multiply
   2,017.77x = 3,025.64 × 922.91
4. Step 4: Simplify right side
   2,017.77x = 2,792,373.67
5. Step 5: Solve for x
   x = 2,792,373.67/2,017.77
6. Step 6: Final answer
   x = 1,383.89