Finding the Fourth Proportional to 1,785.78, 2,466.72 and 1,314.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,785.78 : 2,466.72 = 1,314.63 : x
2. Step 2: Convert to fraction form
   1,785.78/2,466.72 = 1,314.63/x
3. Step 3: Cross multiply
   1,785.78x = 2,466.72 × 1,314.63
4. Step 4: Simplify right side
   1,785.78x = 3,242,824.11
5. Step 5: Solve for x
   x = 3,242,824.11/1,785.78
6. Step 6: Final answer
   x = 1,815.91