Finding the Fourth Proportional to 1,493.51, 2,061.12 and 830.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.51 : 2,061.12 = 830.38 : x
2. Step 2: Convert to fraction form
   1,493.51/2,061.12 = 830.38/x
3. Step 3: Cross multiply
   1,493.51x = 2,061.12 × 830.38
4. Step 4: Simplify right side
   1,493.51x = 1,711,502.52
5. Step 5: Solve for x
   x = 1,711,502.52/1,493.51
6. Step 6: Final answer
   x = 1,145.96