Finding the Fourth Proportional to 1,435.87, 2,150.56 and 1,022.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.87 : 2,150.56 = 1,022.77 : x
2. Step 2: Convert to fraction form
   1,435.87/2,150.56 = 1,022.77/x
3. Step 3: Cross multiply
   1,435.87x = 2,150.56 × 1,022.77
4. Step 4: Simplify right side
   1,435.87x = 2,199,528.25
5. Step 5: Solve for x
   x = 2,199,528.25/1,435.87
6. Step 6: Final answer
   x = 1,531.84