Finding the Fourth Proportional to 1,068.50, 1,603.47 and 384.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.50 : 1,603.47 = 384.50 : x
2. Step 2: Convert to fraction form
   1,068.50/1,603.47 = 384.50/x
3. Step 3: Cross multiply
   1,068.50x = 1,603.47 × 384.50
4. Step 4: Simplify right side
   1,068.50x = 616,534.22
5. Step 5: Solve for x
   x = 616,534.22/1,068.50
6. Step 6: Final answer
   x = 577.01