Finding the Fourth Proportional to 1,629.95, 2,249.51 and 931.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629.95 : 2,249.51 = 931.32 : x
2. Step 2: Convert to fraction form
   1,629.95/2,249.51 = 931.32/x
3. Step 3: Cross multiply
   1,629.95x = 2,249.51 × 931.32
4. Step 4: Simplify right side
   1,629.95x = 2,095,009.00
5. Step 5: Solve for x
   x = 2,095,009.00/1,629.95
6. Step 6: Final answer
   x = 1,285.32