Finding the Fourth Proportional to 2,111.10, 2,910.60 and 1,363.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.10 : 2,910.60 = 1,363.74 : x
2. Step 2: Convert to fraction form
   2,111.10/2,910.60 = 1,363.74/x
3. Step 3: Cross multiply
   2,111.10x = 2,910.60 × 1,363.74
4. Step 4: Simplify right side
   2,111.10x = 3,969,301.64
5. Step 5: Solve for x
   x = 3,969,301.64/2,111.10
6. Step 6: Final answer
   x = 1,880.21