Finding the Fourth Proportional to 1,435.30, 1,980.67 and 797.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.30 : 1,980.67 = 797.24 : x
2. Step 2: Convert to fraction form
   1,435.30/1,980.67 = 797.24/x
3. Step 3: Cross multiply
   1,435.30x = 1,980.67 × 797.24
4. Step 4: Simplify right side
   1,435.30x = 1,579,069.35
5. Step 5: Solve for x
   x = 1,579,069.35/1,435.30
6. Step 6: Final answer
   x = 1,100.17