Finding the Fourth Proportional to 1,664.17, 2,494.27 and 773.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.17 : 2,494.27 = 773.50 : x
2. Step 2: Convert to fraction form
   1,664.17/2,494.27 = 773.50/x
3. Step 3: Cross multiply
   1,664.17x = 2,494.27 × 773.50
4. Step 4: Simplify right side
   1,664.17x = 1,929,317.22
5. Step 5: Solve for x
   x = 1,929,317.22/1,664.17
6. Step 6: Final answer
   x = 1,159.33