Finding the Fourth Proportional to 3,459.61, 5,190.25 and 994.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,459.61 : 5,190.25 = 994.38 : x
2. Step 2: Convert to fraction form
   3,459.61/5,190.25 = 994.38/x
3. Step 3: Cross multiply
   3,459.61x = 5,190.25 × 994.38
4. Step 4: Simplify right side
   3,459.61x = 5,161,075.82
5. Step 5: Solve for x
   x = 5,161,075.82/3,459.61
6. Step 6: Final answer
   x = 1,491.81