Finding the Fourth Proportional to 1,580.62, 2,367.89 and 885.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580.62 : 2,367.89 = 885.18 : x
2. Step 2: Convert to fraction form
   1,580.62/2,367.89 = 885.18/x
3. Step 3: Cross multiply
   1,580.62x = 2,367.89 × 885.18
4. Step 4: Simplify right side
   1,580.62x = 2,096,008.87
5. Step 5: Solve for x
   x = 2,096,008.87/1,580.62
6. Step 6: Final answer
   x = 1,326.07