Finding the Fourth Proportional to 1,047.34, 1,445.32 and 581.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.34 : 1,445.32 = 581.58 : x
2. Step 2: Convert to fraction form
   1,047.34/1,445.32 = 581.58/x
3. Step 3: Cross multiply
   1,047.34x = 1,445.32 × 581.58
4. Step 4: Simplify right side
   1,047.34x = 840,569.21
5. Step 5: Solve for x
   x = 840,569.21/1,047.34
6. Step 6: Final answer
   x = 802.58