Finding the Fourth Proportional to 2,508.78, 3,462.06 and 1,404.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,508.78 : 3,462.06 = 1,404.78 : x
2. Step 2: Convert to fraction form
   2,508.78/3,462.06 = 1,404.78/x
3. Step 3: Cross multiply
   2,508.78x = 3,462.06 × 1,404.78
4. Step 4: Simplify right side
   2,508.78x = 4,863,432.65
5. Step 5: Solve for x
   x = 4,863,432.65/2,508.78
6. Step 6: Final answer
   x = 1,938.56