Finding the Fourth Proportional to 1,754.72, 2,631.62 and 521.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,754.72 : 2,631.62 = 521.82 : x
2. Step 2: Convert to fraction form
   1,754.72/2,631.62 = 521.82/x
3. Step 3: Cross multiply
   1,754.72x = 2,631.62 × 521.82
4. Step 4: Simplify right side
   1,754.72x = 1,373,229.34
5. Step 5: Solve for x
   x = 1,373,229.34/1,754.72
6. Step 6: Final answer
   x = 782.59