Finding the Fourth Proportional to 2,705.60, 4,058.42 and 757.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,705.60 : 4,058.42 = 757.82 : x
2. Step 2: Convert to fraction form
   2,705.60/4,058.42 = 757.82/x
3. Step 3: Cross multiply
   2,705.60x = 4,058.42 × 757.82
4. Step 4: Simplify right side
   2,705.60x = 3,075,527.76
5. Step 5: Solve for x
   x = 3,075,527.76/2,705.60
6. Step 6: Final answer
   x = 1,136.73