Finding the Fourth Proportional to 2,013.57, 2,778.74 and 1,314.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.57 : 2,778.74 = 1,314.95 : x
2. Step 2: Convert to fraction form
   2,013.57/2,778.74 = 1,314.95/x
3. Step 3: Cross multiply
   2,013.57x = 2,778.74 × 1,314.95
4. Step 4: Simplify right side
   2,013.57x = 3,653,883.69
5. Step 5: Solve for x
   x = 3,653,883.69/2,013.57
6. Step 6: Final answer
   x = 1,814.63