Finding the Fourth Proportional to 1,483.88, 2,047.59 and 820.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.88 : 2,047.59 = 820.71 : x
2. Step 2: Convert to fraction form
   1,483.88/2,047.59 = 820.71/x
3. Step 3: Cross multiply
   1,483.88x = 2,047.59 × 820.71
4. Step 4: Simplify right side
   1,483.88x = 1,680,477.59
5. Step 5: Solve for x
   x = 1,680,477.59/1,483.88
6. Step 6: Final answer
   x = 1,132.49