Finding the Fourth Proportional to 2,222.76, 3,333.05 and 1,298.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.76 : 3,333.05 = 1,298.55 : x
2. Step 2: Convert to fraction form
   2,222.76/3,333.05 = 1,298.55/x
3. Step 3: Cross multiply
   2,222.76x = 3,333.05 × 1,298.55
4. Step 4: Simplify right side
   2,222.76x = 4,328,135.32
5. Step 5: Solve for x
   x = 4,328,135.32/2,222.76
6. Step 6: Final answer
   x = 1,947.19