Finding the Fourth Proportional to 1,047.73, 1,445.85 and 581.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.73 : 1,445.85 = 581.98 : x
2. Step 2: Convert to fraction form
   1,047.73/1,445.85 = 581.98/x
3. Step 3: Cross multiply
   1,047.73x = 1,445.85 × 581.98
4. Step 4: Simplify right side
   1,047.73x = 841,455.78
5. Step 5: Solve for x
   x = 841,455.78/1,047.73
6. Step 6: Final answer
   x = 803.12