Finding the Fourth Proportional to 1,594.22, 2,390.52 and 772.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,594.22 : 2,390.52 = 772.07 : x
2. Step 2: Convert to fraction form
   1,594.22/2,390.52 = 772.07/x
3. Step 3: Cross multiply
   1,594.22x = 2,390.52 × 772.07
4. Step 4: Simplify right side
   1,594.22x = 1,845,648.78
5. Step 5: Solve for x
   x = 1,845,648.78/1,594.22
6. Step 6: Final answer
   x = 1,157.71