Finding the Fourth Proportional to 1,359.42, 1,875.33 and 887.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.42 : 1,875.33 = 887.09 : x
2. Step 2: Convert to fraction form
   1,359.42/1,875.33 = 887.09/x
3. Step 3: Cross multiply
   1,359.42x = 1,875.33 × 887.09
4. Step 4: Simplify right side
   1,359.42x = 1,663,590.44
5. Step 5: Solve for x
   x = 1,663,590.44/1,359.42
6. Step 6: Final answer
   x = 1,223.75