Finding the Fourth Proportional to 2,100.22, 3,149.76 and 800.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.22 : 3,149.76 = 800.98 : x
2. Step 2: Convert to fraction form
   2,100.22/3,149.76 = 800.98/x
3. Step 3: Cross multiply
   2,100.22x = 3,149.76 × 800.98
4. Step 4: Simplify right side
   2,100.22x = 2,522,894.76
5. Step 5: Solve for x
   x = 2,522,894.76/2,100.22
6. Step 6: Final answer
   x = 1,201.25