Finding the Fourth Proportional to 2,101.40, 3,147.40 and 1,775.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.40 : 3,147.40 = 1,775.52 : x
2. Step 2: Convert to fraction form
   2,101.40/3,147.40 = 1,775.52/x
3. Step 3: Cross multiply
   2,101.40x = 3,147.40 × 1,775.52
4. Step 4: Simplify right side
   2,101.40x = 5,588,271.65
5. Step 5: Solve for x
   x = 5,588,271.65/2,101.40
6. Step 6: Final answer
   x = 2,659.31