Finding the Fourth Proportional to 1,047.69, 1,445.79 and 581.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.69 : 1,445.79 = 581.94 : x
2. Step 2: Convert to fraction form
   1,047.69/1,445.79 = 581.94/x
3. Step 3: Cross multiply
   1,047.69x = 1,445.79 × 581.94
4. Step 4: Simplify right side
   1,047.69x = 841,363.03
5. Step 5: Solve for x
   x = 841,363.03/1,047.69
6. Step 6: Final answer
   x = 803.06