Finding the Fourth Proportional to 1,840.60, 2,540.82 and 1,315.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,840.60 : 2,540.82 = 1,315.72 : x
2. Step 2: Convert to fraction form
   1,840.60/2,540.82 = 1,315.72/x
3. Step 3: Cross multiply
   1,840.60x = 2,540.82 × 1,315.72
4. Step 4: Simplify right side
   1,840.60x = 3,343,007.69
5. Step 5: Solve for x
   x = 3,343,007.69/1,840.60
6. Step 6: Final answer
   x = 1,816.26