Finding the Fourth Proportional to 2,024.40, 2,805.42 and 1,985.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,024.40 : 2,805.42 = 1,985.52 : x
2. Step 2: Convert to fraction form
   2,024.40/2,805.42 = 1,985.52/x
3. Step 3: Cross multiply
   2,024.40x = 2,805.42 × 1,985.52
4. Step 4: Simplify right side
   2,024.40x = 5,570,217.52
5. Step 5: Solve for x
   x = 5,570,217.52/2,024.40
6. Step 6: Final answer
   x = 2,751.54