Finding the Fourth Proportional to 1,493.93, 2,061.74 and 830.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.93 : 2,061.74 = 830.95 : x
2. Step 2: Convert to fraction form
   1,493.93/2,061.74 = 830.95/x
3. Step 3: Cross multiply
   1,493.93x = 2,061.74 × 830.95
4. Step 4: Simplify right side
   1,493.93x = 1,713,188.39
5. Step 5: Solve for x
   x = 1,713,188.39/1,493.93
6. Step 6: Final answer
   x = 1,146.77