Finding the Fourth Proportional to 1,990.89, 2,746.98 and 1,204.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.89 : 2,746.98 = 1,204.77 : x
2. Step 2: Convert to fraction form
   1,990.89/2,746.98 = 1,204.77/x
3. Step 3: Cross multiply
   1,990.89x = 2,746.98 × 1,204.77
4. Step 4: Simplify right side
   1,990.89x = 3,309,479.09
5. Step 5: Solve for x
   x = 3,309,479.09/1,990.89
6. Step 6: Final answer
   x = 1,662.31