Finding the Fourth Proportional to 1,485.42, 2,048.52 and 1,275.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.42 : 2,048.52 = 1,275.52 : x
2. Step 2: Convert to fraction form
   1,485.42/2,048.52 = 1,275.52/x
3. Step 3: Cross multiply
   1,485.42x = 2,048.52 × 1,275.52
4. Step 4: Simplify right side
   1,485.42x = 2,612,928.23
5. Step 5: Solve for x
   x = 2,612,928.23/1,485.42
6. Step 6: Final answer
   x = 1,759.05