Finding the Fourth Proportional to 1,913.83, 2,640.42 and 1,074.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.83 : 2,640.42 = 1,074.41 : x
2. Step 2: Convert to fraction form
   1,913.83/2,640.42 = 1,074.41/x
3. Step 3: Cross multiply
   1,913.83x = 2,640.42 × 1,074.41
4. Step 4: Simplify right side
   1,913.83x = 2,836,908.23
5. Step 5: Solve for x
   x = 2,836,908.23/1,913.83
6. Step 6: Final answer
   x = 1,482.32