Finding the Fourth Proportional to 1,913.73, 2,643.55 and 1,499.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.73 : 2,643.55 = 1,499.33 : x
2. Step 2: Convert to fraction form
   1,913.73/2,643.55 = 1,499.33/x
3. Step 3: Cross multiply
   1,913.73x = 2,643.55 × 1,499.33
4. Step 4: Simplify right side
   1,913.73x = 3,963,540.60
5. Step 5: Solve for x
   x = 3,963,540.60/1,913.73
6. Step 6: Final answer
   x = 2,071.11