Finding the Fourth Proportional to 1,069.10, 1,602.28 and 483.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.10 : 1,602.28 = 483.47 : x
2. Step 2: Convert to fraction form
   1,069.10/1,602.28 = 483.47/x
3. Step 3: Cross multiply
   1,069.10x = 1,602.28 × 483.47
4. Step 4: Simplify right side
   1,069.10x = 774,654.31
5. Step 5: Solve for x
   x = 774,654.31/1,069.10
6. Step 6: Final answer
   x = 724.59