Finding the Fourth Proportional to 2,738.31, 4,107.42 and 1,770.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.31 : 4,107.42 = 1,770.57 : x
2. Step 2: Convert to fraction form
   2,738.31/4,107.42 = 1,770.57/x
3. Step 3: Cross multiply
   2,738.31x = 4,107.42 × 1,770.57
4. Step 4: Simplify right side
   2,738.31x = 7,272,474.63
5. Step 5: Solve for x
   x = 7,272,474.63/2,738.31
6. Step 6: Final answer
   x = 2,655.83