Finding the Fourth Proportional to 1,003.93, 1,505.67 and 730.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.93 : 1,505.67 = 730.15 : x
2. Step 2: Convert to fraction form
   1,003.93/1,505.67 = 730.15/x
3. Step 3: Cross multiply
   1,003.93x = 1,505.67 × 730.15
4. Step 4: Simplify right side
   1,003.93x = 1,099,364.95
5. Step 5: Solve for x
   x = 1,099,364.95/1,003.93
6. Step 6: Final answer
   x = 1,095.06