Finding the Fourth Proportional to 1,760.47, 2,641.05 and 786.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.47 : 2,641.05 = 786.57 : x
2. Step 2: Convert to fraction form
   1,760.47/2,641.05 = 786.57/x
3. Step 3: Cross multiply
   1,760.47x = 2,641.05 × 786.57
4. Step 4: Simplify right side
   1,760.47x = 2,077,360.79
5. Step 5: Solve for x
   x = 2,077,360.79/1,760.47
6. Step 6: Final answer
   x = 1,180.01