Finding the Fourth Proportional to 2,271.90, 3,404.47 and 1,174.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.90 : 3,404.47 = 1,174.80 : x
2. Step 2: Convert to fraction form
   2,271.90/3,404.47 = 1,174.80/x
3. Step 3: Cross multiply
   2,271.90x = 3,404.47 × 1,174.80
4. Step 4: Simplify right side
   2,271.90x = 3,999,548.46
5. Step 5: Solve for x
   x = 3,999,548.46/2,271.90
6. Step 6: Final answer
   x = 1,760.45