Finding the Fourth Proportional to 1,407.94, 2,111.38 and 483.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.94 : 2,111.38 = 483.24 : x
2. Step 2: Convert to fraction form
   1,407.94/2,111.38 = 483.24/x
3. Step 3: Cross multiply
   1,407.94x = 2,111.38 × 483.24
4. Step 4: Simplify right side
   1,407.94x = 1,020,303.27
5. Step 5: Solve for x
   x = 1,020,303.27/1,407.94
6. Step 6: Final answer
   x = 724.68