Finding the Fourth Proportional to 1,061.03, 1,463.64 and 641.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.03 : 1,463.64 = 641.18 : x
2. Step 2: Convert to fraction form
   1,061.03/1,463.64 = 641.18/x
3. Step 3: Cross multiply
   1,061.03x = 1,463.64 × 641.18
4. Step 4: Simplify right side
   1,061.03x = 938,456.70
5. Step 5: Solve for x
   x = 938,456.70/1,061.03
6. Step 6: Final answer
   x = 884.48