Finding the Fourth Proportional to 1,879.96, 2,594.34 and 1,040.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,879.96 : 2,594.34 = 1,040.72 : x
2. Step 2: Convert to fraction form
   1,879.96/2,594.34 = 1,040.72/x
3. Step 3: Cross multiply
   1,879.96x = 2,594.34 × 1,040.72
4. Step 4: Simplify right side
   1,879.96x = 2,699,968.55
5. Step 5: Solve for x
   x = 2,699,968.55/1,879.96
6. Step 6: Final answer
   x = 1,436.19