Finding the Fourth Proportional to 2,801.98, 4,199.32 and 1,242.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.98 : 4,199.32 = 1,242.43 : x
2. Step 2: Convert to fraction form
   2,801.98/4,199.32 = 1,242.43/x
3. Step 3: Cross multiply
   2,801.98x = 4,199.32 × 1,242.43
4. Step 4: Simplify right side
   2,801.98x = 5,217,347.54
5. Step 5: Solve for x
   x = 5,217,347.54/2,801.98
6. Step 6: Final answer
   x = 1,862.02