Finding the Fourth Proportional to 1,873.67, 2,585.31 and 1,165.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,873.67 : 2,585.31 = 1,165.72 : x
2. Step 2: Convert to fraction form
   1,873.67/2,585.31 = 1,165.72/x
3. Step 3: Cross multiply
   1,873.67x = 2,585.31 × 1,165.72
4. Step 4: Simplify right side
   1,873.67x = 3,013,747.57
5. Step 5: Solve for x
   x = 3,013,747.57/1,873.67
6. Step 6: Final answer
   x = 1,608.47