Finding the Fourth Proportional to 1,465.31, 2,021.73 and 835.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,465.31 : 2,021.73 = 835.61 : x
2. Step 2: Convert to fraction form
   1,465.31/2,021.73 = 835.61/x
3. Step 3: Cross multiply
   1,465.31x = 2,021.73 × 835.61
4. Step 4: Simplify right side
   1,465.31x = 1,689,379.07
5. Step 5: Solve for x
   x = 1,689,379.07/1,465.31
6. Step 6: Final answer
   x = 1,152.91