Finding the Fourth Proportional to 2,397.78, 3,588.84 and 1,299.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,397.78 : 3,588.84 = 1,299.42 : x
2. Step 2: Convert to fraction form
   2,397.78/3,588.84 = 1,299.42/x
3. Step 3: Cross multiply
   2,397.78x = 3,588.84 × 1,299.42
4. Step 4: Simplify right side
   2,397.78x = 4,663,410.47
5. Step 5: Solve for x
   x = 4,663,410.47/2,397.78
6. Step 6: Final answer
   x = 1,944.89