Finding the Fourth Proportional to 1,913.88, 2,641.56 and 1,499.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.88 : 2,641.56 = 1,499.16 : x
2. Step 2: Convert to fraction form
   1,913.88/2,641.56 = 1,499.16/x
3. Step 3: Cross multiply
   1,913.88x = 2,641.56 × 1,499.16
4. Step 4: Simplify right side
   1,913.88x = 3,960,121.09
5. Step 5: Solve for x
   x = 3,960,121.09/1,913.88
6. Step 6: Final answer
   x = 2,069.16