Finding the Fourth Proportional to 2,752.16, 3,798.42 and 2,123.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.16 : 3,798.42 = 2,123.60 : x
2. Step 2: Convert to fraction form
   2,752.16/3,798.42 = 2,123.60/x
3. Step 3: Cross multiply
   2,752.16x = 3,798.42 × 2,123.60
4. Step 4: Simplify right side
   2,752.16x = 8,066,324.71
5. Step 5: Solve for x
   x = 8,066,324.71/2,752.16
6. Step 6: Final answer
   x = 2,930.91