Finding the Fourth Proportional to 2,554.91, 3,525.72 and 1,420.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.91 : 3,525.72 = 1,420.51 : x
2. Step 2: Convert to fraction form
   2,554.91/3,525.72 = 1,420.51/x
3. Step 3: Cross multiply
   2,554.91x = 3,525.72 × 1,420.51
4. Step 4: Simplify right side
   2,554.91x = 5,008,320.52
5. Step 5: Solve for x
   x = 5,008,320.52/2,554.91
6. Step 6: Final answer
   x = 1,960.27