Finding the Fourth Proportional to 1,990, 2,746.20 and 1,162

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990 : 2,746.20 = 1,162 : x
2. Step 2: Convert to fraction form
   1,990/2,746.20 = 1,162/x
3. Step 3: Cross multiply
   1,990x = 2,746.20 × 1,162
4. Step 4: Simplify right side
   1,990x = 3,191,084.40
5. Step 5: Solve for x
   x = 3,191,084.40/1,990
6. Step 6: Final answer
   x = 1,603.56