Finding the Fourth Proportional to 2,101.93, 3,151.83 and 1,224.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.93 : 3,151.83 = 1,224.71 : x
2. Step 2: Convert to fraction form
   2,101.93/3,151.83 = 1,224.71/x
3. Step 3: Cross multiply
   2,101.93x = 3,151.83 × 1,224.71
4. Step 4: Simplify right side
   2,101.93x = 3,860,077.72
5. Step 5: Solve for x
   x = 3,860,077.72/2,101.93
6. Step 6: Final answer
   x = 1,836.45