Finding the Fourth Proportional to 1,493.54, 2,061.17 and 830.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.54 : 2,061.17 = 830.45 : x
2. Step 2: Convert to fraction form
   1,493.54/2,061.17 = 830.45/x
3. Step 3: Cross multiply
   1,493.54x = 2,061.17 × 830.45
4. Step 4: Simplify right side
   1,493.54x = 1,711,705.08
5. Step 5: Solve for x
   x = 1,711,705.08/1,493.54
6. Step 6: Final answer
   x = 1,146.07