Finding the Fourth Proportional to 3,459.60, 5,189.42 and 994.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,459.60 : 5,189.42 = 994.52 : x
2. Step 2: Convert to fraction form
   3,459.60/5,189.42 = 994.52/x
3. Step 3: Cross multiply
   3,459.60x = 5,189.42 × 994.52
4. Step 4: Simplify right side
   3,459.60x = 5,160,981.98
5. Step 5: Solve for x
   x = 5,160,981.98/3,459.60
6. Step 6: Final answer
   x = 1,491.79