Finding the Fourth Proportional to 2,162.50, 2,985.42 and 1,323.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.50 : 2,985.42 = 1,323.40 : x
2. Step 2: Convert to fraction form
   2,162.50/2,985.42 = 1,323.40/x
3. Step 3: Cross multiply
   2,162.50x = 2,985.42 × 1,323.40
4. Step 4: Simplify right side
   2,162.50x = 3,950,904.83
5. Step 5: Solve for x
   x = 3,950,904.83/2,162.50
6. Step 6: Final answer
   x = 1,827.01