Finding the Fourth Proportional to 2,752.48, 4,128.93 and 1,290.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.48 : 4,128.93 = 1,290.82 : x
2. Step 2: Convert to fraction form
   2,752.48/4,128.93 = 1,290.82/x
3. Step 3: Cross multiply
   2,752.48x = 4,128.93 × 1,290.82
4. Step 4: Simplify right side
   2,752.48x = 5,329,705.42
5. Step 5: Solve for x
   x = 5,329,705.42/2,752.48
6. Step 6: Final answer
   x = 1,936.33