Finding the Fourth Proportional to 1,908.83, 2,633.97 and 1,122.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.83 : 2,633.97 = 1,122.72 : x
2. Step 2: Convert to fraction form
   1,908.83/2,633.97 = 1,122.72/x
3. Step 3: Cross multiply
   1,908.83x = 2,633.97 × 1,122.72
4. Step 4: Simplify right side
   1,908.83x = 2,957,210.80
5. Step 5: Solve for x
   x = 2,957,210.80/1,908.83
6. Step 6: Final answer
   x = 1,549.23