Finding the Fourth Proportional to 1,990.10, 2,746.35 and 1,105.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.10 : 2,746.35 = 1,105.98 : x
2. Step 2: Convert to fraction form
   1,990.10/2,746.35 = 1,105.98/x
3. Step 3: Cross multiply
   1,990.10x = 2,746.35 × 1,105.98
4. Step 4: Simplify right side
   1,990.10x = 3,037,408.17
5. Step 5: Solve for x
   x = 3,037,408.17/1,990.10
6. Step 6: Final answer
   x = 1,526.26