Finding the Fourth Proportional to 2,123.78, 2,929.16 and 1,625.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.78 : 2,929.16 = 1,625.18 : x
2. Step 2: Convert to fraction form
   2,123.78/2,929.16 = 1,625.18/x
3. Step 3: Cross multiply
   2,123.78x = 2,929.16 × 1,625.18
4. Step 4: Simplify right side
   2,123.78x = 4,760,412.25
5. Step 5: Solve for x
   x = 4,760,412.25/2,123.78
6. Step 6: Final answer
   x = 2,241.48