Finding the Fourth Proportional to 1,484.42, 2,048.38 and 821.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.42 : 2,048.38 = 821.02 : x
2. Step 2: Convert to fraction form
   1,484.42/2,048.38 = 821.02/x
3. Step 3: Cross multiply
   1,484.42x = 2,048.38 × 821.02
4. Step 4: Simplify right side
   1,484.42x = 1,681,760.95
5. Step 5: Solve for x
   x = 1,681,760.95/1,484.42
6. Step 6: Final answer
   x = 1,132.94