Finding the Fourth Proportional to 2,144.79, 3,216.88 and 1,048.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.79 : 3,216.88 = 1,048.86 : x
2. Step 2: Convert to fraction form
   2,144.79/3,216.88 = 1,048.86/x
3. Step 3: Cross multiply
   2,144.79x = 3,216.88 × 1,048.86
4. Step 4: Simplify right side
   2,144.79x = 3,374,054.13
5. Step 5: Solve for x
   x = 3,374,054.13/2,144.79
6. Step 6: Final answer
   x = 1,573.14