Finding the Fourth Proportional to 1,218.72, 1,825.32 and 730.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218.72 : 1,825.32 = 730.74 : x
2. Step 2: Convert to fraction form
   1,218.72/1,825.32 = 730.74/x
3. Step 3: Cross multiply
   1,218.72x = 1,825.32 × 730.74
4. Step 4: Simplify right side
   1,218.72x = 1,333,834.34
5. Step 5: Solve for x
   x = 1,333,834.34/1,218.72
6. Step 6: Final answer
   x = 1,094.46