Finding the Fourth Proportional to 1,990.07, 2,746.10 and 1,150.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.07 : 2,746.10 = 1,150.61 : x
2. Step 2: Convert to fraction form
   1,990.07/2,746.10 = 1,150.61/x
3. Step 3: Cross multiply
   1,990.07x = 2,746.10 × 1,150.61
4. Step 4: Simplify right side
   1,990.07x = 3,159,679.27
5. Step 5: Solve for x
   x = 3,159,679.27/1,990.07
6. Step 6: Final answer
   x = 1,587.72