Finding the Fourth Proportional to 2,290.47, 3,434.48 and 730.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.47 : 3,434.48 = 730.05 : x
2. Step 2: Convert to fraction form
   2,290.47/3,434.48 = 730.05/x
3. Step 3: Cross multiply
   2,290.47x = 3,434.48 × 730.05
4. Step 4: Simplify right side
   2,290.47x = 2,507,338.47
5. Step 5: Solve for x
   x = 2,507,338.47/2,290.47
6. Step 6: Final answer
   x = 1,094.68