Finding the Fourth Proportional to 2,048.03, 2,826.51 and 1,139.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,048.03 : 2,826.51 = 1,139.63 : x
2. Step 2: Convert to fraction form
   2,048.03/2,826.51 = 1,139.63/x
3. Step 3: Cross multiply
   2,048.03x = 2,826.51 × 1,139.63
4. Step 4: Simplify right side
   2,048.03x = 3,221,174.91
5. Step 5: Solve for x
   x = 3,221,174.91/2,048.03
6. Step 6: Final answer
   x = 1,572.82