Finding the Fourth Proportional to 1,587.12, 2,377.04 and 1,100.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587.12 : 2,377.04 = 1,100.52 : x
2. Step 2: Convert to fraction form
   1,587.12/2,377.04 = 1,100.52/x
3. Step 3: Cross multiply
   1,587.12x = 2,377.04 × 1,100.52
4. Step 4: Simplify right side
   1,587.12x = 2,615,974.56
5. Step 5: Solve for x
   x = 2,615,974.56/1,587.12
6. Step 6: Final answer
   x = 1,648.25