Finding the Fourth Proportional to 1,171.74, 1,757.89 and 349.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.74 : 1,757.89 = 349.94 : x
2. Step 2: Convert to fraction form
   1,171.74/1,757.89 = 349.94/x
3. Step 3: Cross multiply
   1,171.74x = 1,757.89 × 349.94
4. Step 4: Simplify right side
   1,171.74x = 615,156.03
5. Step 5: Solve for x
   x = 615,156.03/1,171.74
6. Step 6: Final answer
   x = 524.99