Finding the Fourth Proportional to 1,594.42, 2,390.76 and 728.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,594.42 : 2,390.76 = 728.26 : x
2. Step 2: Convert to fraction form
   1,594.42/2,390.76 = 728.26/x
3. Step 3: Cross multiply
   1,594.42x = 2,390.76 × 728.26
4. Step 4: Simplify right side
   1,594.42x = 1,741,094.88
5. Step 5: Solve for x
   x = 1,741,094.88/1,594.42
6. Step 6: Final answer
   x = 1,091.99