Finding the Fourth Proportional to 1,494.07, 2,061.69 and 830.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.07 : 2,061.69 = 830.89 : x
2. Step 2: Convert to fraction form
   1,494.07/2,061.69 = 830.89/x
3. Step 3: Cross multiply
   1,494.07x = 2,061.69 × 830.89
4. Step 4: Simplify right side
   1,494.07x = 1,713,037.60
5. Step 5: Solve for x
   x = 1,713,037.60/1,494.07
6. Step 6: Final answer
   x = 1,146.56