Finding the Fourth Proportional to 2,782.09, 4,171.51 and 1,048.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,782.09 : 4,171.51 = 1,048.69 : x
2. Step 2: Convert to fraction form
   2,782.09/4,171.51 = 1,048.69/x
3. Step 3: Cross multiply
   2,782.09x = 4,171.51 × 1,048.69
4. Step 4: Simplify right side
   2,782.09x = 4,374,620.82
5. Step 5: Solve for x
   x = 4,374,620.82/2,782.09
6. Step 6: Final answer
   x = 1,572.42