Finding the Fourth Proportional to 2,120.52, 3,177.90 and 1,574.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.52 : 3,177.90 = 1,574.76 : x
2. Step 2: Convert to fraction form
   2,120.52/3,177.90 = 1,574.76/x
3. Step 3: Cross multiply
   2,120.52x = 3,177.90 × 1,574.76
4. Step 4: Simplify right side
   2,120.52x = 5,004,429.80
5. Step 5: Solve for x
   x = 5,004,429.80/2,120.52
6. Step 6: Final answer
   x = 2,360.00