Finding the Fourth Proportional to 1,990.50, 2,746.89 and 1,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.50 : 2,746.89 = 1,162.50 : x
2. Step 2: Convert to fraction form
   1,990.50/2,746.89 = 1,162.50/x
3. Step 3: Cross multiply
   1,990.50x = 2,746.89 × 1,162.50
4. Step 4: Simplify right side
   1,990.50x = 3,193,259.63
5. Step 5: Solve for x
   x = 3,193,259.63/1,990.50
6. Step 6: Final answer
   x = 1,604.25