Finding the Fourth Proportional to 1,221.82, 1,832.42 and 604.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221.82 : 1,832.42 = 604.94 : x
2. Step 2: Convert to fraction form
   1,221.82/1,832.42 = 604.94/x
3. Step 3: Cross multiply
   1,221.82x = 1,832.42 × 604.94
4. Step 4: Simplify right side
   1,221.82x = 1,108,504.15
5. Step 5: Solve for x
   x = 1,108,504.15/1,221.82
6. Step 6: Final answer
   x = 907.26