Finding the Fourth Proportional to 1,873.86, 2,587.23 and 1,165.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,873.86 : 2,587.23 = 1,165.99 : x
2. Step 2: Convert to fraction form
   1,873.86/2,587.23 = 1,165.99/x
3. Step 3: Cross multiply
   1,873.86x = 2,587.23 × 1,165.99
4. Step 4: Simplify right side
   1,873.86x = 3,016,684.31
5. Step 5: Solve for x
   x = 3,016,684.31/1,873.86
6. Step 6: Final answer
   x = 1,609.88