Finding the Fourth Proportional to 1,493.25, 2,060.58 and 830.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.25 : 2,060.58 = 830.05 : x
2. Step 2: Convert to fraction form
   1,493.25/2,060.58 = 830.05/x
3. Step 3: Cross multiply
   1,493.25x = 2,060.58 × 830.05
4. Step 4: Simplify right side
   1,493.25x = 1,710,384.43
5. Step 5: Solve for x
   x = 1,710,384.43/1,493.25
6. Step 6: Final answer
   x = 1,145.41