Finding the Fourth Proportional to 2,098.55, 2,894.71 and 1,247.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.55 : 2,894.71 = 1,247.22 : x
2. Step 2: Convert to fraction form
   2,098.55/2,894.71 = 1,247.22/x
3. Step 3: Cross multiply
   2,098.55x = 2,894.71 × 1,247.22
4. Step 4: Simplify right side
   2,098.55x = 3,610,340.21
5. Step 5: Solve for x
   x = 3,610,340.21/2,098.55
6. Step 6: Final answer
   x = 1,720.40