Finding the Fourth Proportional to 2,002.52, 2,762.10 and 1,339.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.52 : 2,762.10 = 1,339.40 : x
2. Step 2: Convert to fraction form
   2,002.52/2,762.10 = 1,339.40/x
3. Step 3: Cross multiply
   2,002.52x = 2,762.10 × 1,339.40
4. Step 4: Simplify right side
   2,002.52x = 3,699,556.74
5. Step 5: Solve for x
   x = 3,699,556.74/2,002.52
6. Step 6: Final answer
   x = 1,847.45