Finding the Fourth Proportional to 2,100.38, 2,898.56 and 1,204.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.38 : 2,898.56 = 1,204.20 : x
2. Step 2: Convert to fraction form
   2,100.38/2,898.56 = 1,204.20/x
3. Step 3: Cross multiply
   2,100.38x = 2,898.56 × 1,204.20
4. Step 4: Simplify right side
   2,100.38x = 3,490,439.93
5. Step 5: Solve for x
   x = 3,490,439.93/2,100.38
6. Step 6: Final answer
   x = 1,661.82