Finding the Fourth Proportional to 1,856.15, 2,562.41 and 1,435.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.15 : 2,562.41 = 1,435.55 : x
2. Step 2: Convert to fraction form
   1,856.15/2,562.41 = 1,435.55/x
3. Step 3: Cross multiply
   1,856.15x = 2,562.41 × 1,435.55
4. Step 4: Simplify right side
   1,856.15x = 3,678,447.69
5. Step 5: Solve for x
   x = 3,678,447.69/1,856.15
6. Step 6: Final answer
   x = 1,981.77