Finding the Fourth Proportional to 1,595.04, 2,200.72 and 1,005.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,595.04 : 2,200.72 = 1,005.28 : x
2. Step 2: Convert to fraction form
   1,595.04/2,200.72 = 1,005.28/x
3. Step 3: Cross multiply
   1,595.04x = 2,200.72 × 1,005.28
4. Step 4: Simplify right side
   1,595.04x = 2,212,339.80
5. Step 5: Solve for x
   x = 2,212,339.80/1,595.04
6. Step 6: Final answer
   x = 1,387.01