Finding the Fourth Proportional to 2,525.87, 3,485.61 and 1,406.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.87 : 3,485.61 = 1,406.86 : x
2. Step 2: Convert to fraction form
   2,525.87/3,485.61 = 1,406.86/x
3. Step 3: Cross multiply
   2,525.87x = 3,485.61 × 1,406.86
4. Step 4: Simplify right side
   2,525.87x = 4,903,765.28
5. Step 5: Solve for x
   x = 4,903,765.28/2,525.87
6. Step 6: Final answer
   x = 1,941.42