Finding the Fourth Proportional to 2,014.26, 2,780.24 and 1,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.26 : 2,780.24 = 1,315.50 : x
2. Step 2: Convert to fraction form
   2,014.26/2,780.24 = 1,315.50/x
3. Step 3: Cross multiply
   2,014.26x = 2,780.24 × 1,315.50
4. Step 4: Simplify right side
   2,014.26x = 3,657,405.72
5. Step 5: Solve for x
   x = 3,657,405.72/2,014.26
6. Step 6: Final answer
   x = 1,815.76