Finding the Fourth Proportional to 1,002.83, 1,501.20 and 729.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.83 : 1,501.20 = 729.45 : x
2. Step 2: Convert to fraction form
   1,002.83/1,501.20 = 729.45/x
3. Step 3: Cross multiply
   1,002.83x = 1,501.20 × 729.45
4. Step 4: Simplify right side
   1,002.83x = 1,095,050.34
5. Step 5: Solve for x
   x = 1,095,050.34/1,002.83
6. Step 6: Final answer
   x = 1,091.97