Finding the Fourth Proportional to 1,595.10, 2,201.52 and 1,005.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,595.10 : 2,201.52 = 1,005.18 : x
2. Step 2: Convert to fraction form
   1,595.10/2,201.52 = 1,005.18/x
3. Step 3: Cross multiply
   1,595.10x = 2,201.52 × 1,005.18
4. Step 4: Simplify right side
   1,595.10x = 2,212,923.87
5. Step 5: Solve for x
   x = 2,212,923.87/1,595.10
6. Step 6: Final answer
   x = 1,387.33