Finding the Fourth Proportional to 1,493.60, 2,061.18 and 830.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.60 : 2,061.18 = 830.43 : x
2. Step 2: Convert to fraction form
   1,493.60/2,061.18 = 830.43/x
3. Step 3: Cross multiply
   1,493.60x = 2,061.18 × 830.43
4. Step 4: Simplify right side
   1,493.60x = 1,711,665.71
5. Step 5: Solve for x
   x = 1,711,665.71/1,493.60
6. Step 6: Final answer
   x = 1,146.00