Finding the Fourth Proportional to 1,462.72, 2,193.39 and 870.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,462.72 : 2,193.39 = 870.35 : x
2. Step 2: Convert to fraction form
   1,462.72/2,193.39 = 870.35/x
3. Step 3: Cross multiply
   1,462.72x = 2,193.39 × 870.35
4. Step 4: Simplify right side
   1,462.72x = 1,909,022.47
5. Step 5: Solve for x
   x = 1,909,022.47/1,462.72
6. Step 6: Final answer
   x = 1,305.12