Finding the Fourth Proportional to 1,635.38, 2,451.61 and 1,171.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.38 : 2,451.61 = 1,171.99 : x
2. Step 2: Convert to fraction form
   1,635.38/2,451.61 = 1,171.99/x
3. Step 3: Cross multiply
   1,635.38x = 2,451.61 × 1,171.99
4. Step 4: Simplify right side
   1,635.38x = 2,873,262.40
5. Step 5: Solve for x
   x = 2,873,262.40/1,635.38
6. Step 6: Final answer
   x = 1,756.94