Finding the Fourth Proportional to 1,685.82, 2,529.41 and 760.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685.82 : 2,529.41 = 760.72 : x
2. Step 2: Convert to fraction form
   1,685.82/2,529.41 = 760.72/x
3. Step 3: Cross multiply
   1,685.82x = 2,529.41 × 760.72
4. Step 4: Simplify right side
   1,685.82x = 1,924,172.78
5. Step 5: Solve for x
   x = 1,924,172.78/1,685.82
6. Step 6: Final answer
   x = 1,141.39