Finding the Fourth Proportional to 1,435.37, 1,983.53 and 1,222.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.37 : 1,983.53 = 1,222.65 : x
2. Step 2: Convert to fraction form
   1,435.37/1,983.53 = 1,222.65/x
3. Step 3: Cross multiply
   1,435.37x = 1,983.53 × 1,222.65
4. Step 4: Simplify right side
   1,435.37x = 2,425,168.15
5. Step 5: Solve for x
   x = 2,425,168.15/1,435.37
6. Step 6: Final answer
   x = 1,689.58