Finding the Fourth Proportional to 1,493.55, 2,061.11 and 830.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.55 : 2,061.11 = 830.39 : x
2. Step 2: Convert to fraction form
   1,493.55/2,061.11 = 830.39/x
3. Step 3: Cross multiply
   1,493.55x = 2,061.11 × 830.39
4. Step 4: Simplify right side
   1,493.55x = 1,711,510.68
5. Step 5: Solve for x
   x = 1,711,510.68/1,493.55
6. Step 6: Final answer
   x = 1,145.93