Finding the Fourth Proportional to 2,525.35, 3,485.10 and 1,406.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.35 : 3,485.10 = 1,406.31 : x
2. Step 2: Convert to fraction form
   2,525.35/3,485.10 = 1,406.31/x
3. Step 3: Cross multiply
   2,525.35x = 3,485.10 × 1,406.31
4. Step 4: Simplify right side
   2,525.35x = 4,901,130.98
5. Step 5: Solve for x
   x = 4,901,130.98/2,525.35
6. Step 6: Final answer
   x = 1,940.77