Finding the Fourth Proportional to 2,104.95, 3,151.31 and 1,224.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.95 : 3,151.31 = 1,224.77 : x
2. Step 2: Convert to fraction form
   2,104.95/3,151.31 = 1,224.77/x
3. Step 3: Cross multiply
   2,104.95x = 3,151.31 × 1,224.77
4. Step 4: Simplify right side
   2,104.95x = 3,859,619.89
5. Step 5: Solve for x
   x = 3,859,619.89/2,104.95
6. Step 6: Final answer
   x = 1,833.59