Finding the Fourth Proportional to 1,046.51, 1,443.93 and 580.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.51 : 1,443.93 = 580.76 : x
2. Step 2: Convert to fraction form
   1,046.51/1,443.93 = 580.76/x
3. Step 3: Cross multiply
   1,046.51x = 1,443.93 × 580.76
4. Step 4: Simplify right side
   1,046.51x = 838,576.79
5. Step 5: Solve for x
   x = 838,576.79/1,046.51
6. Step 6: Final answer
   x = 801.31