Finding the Fourth Proportional to 1,990.17, 2,746.29 and 1,105.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.17 : 2,746.29 = 1,105.95 : x
2. Step 2: Convert to fraction form
   1,990.17/2,746.29 = 1,105.95/x
3. Step 3: Cross multiply
   1,990.17x = 2,746.29 × 1,105.95
4. Step 4: Simplify right side
   1,990.17x = 3,037,259.43
5. Step 5: Solve for x
   x = 3,037,259.43/1,990.17
6. Step 6: Final answer
   x = 1,526.13