Finding the Fourth Proportional to 1,756.86, 2,636.20 and 782.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,756.86 : 2,636.20 = 782.73 : x
2. Step 2: Convert to fraction form
   1,756.86/2,636.20 = 782.73/x
3. Step 3: Cross multiply
   1,756.86x = 2,636.20 × 782.73
4. Step 4: Simplify right side
   1,756.86x = 2,063,443.69
5. Step 5: Solve for x
   x = 2,063,443.69/1,756.86
6. Step 6: Final answer
   x = 1,174.51