Finding the Fourth Proportional to 1,493.31, 2,060.73 and 830.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.31 : 2,060.73 = 830.22 : x
2. Step 2: Convert to fraction form
   1,493.31/2,060.73 = 830.22/x
3. Step 3: Cross multiply
   1,493.31x = 2,060.73 × 830.22
4. Step 4: Simplify right side
   1,493.31x = 1,710,859.26
5. Step 5: Solve for x
   x = 1,710,859.26/1,493.31
6. Step 6: Final answer
   x = 1,145.68