Finding the Fourth Proportional to 3,111.78, 4,294.31 and 1,714.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.78 : 4,294.31 = 1,714.53 : x
2. Step 2: Convert to fraction form
   3,111.78/4,294.31 = 1,714.53/x
3. Step 3: Cross multiply
   3,111.78x = 4,294.31 × 1,714.53
4. Step 4: Simplify right side
   3,111.78x = 7,362,714.75
5. Step 5: Solve for x
   x = 7,362,714.75/3,111.78
6. Step 6: Final answer
   x = 2,366.08