Finding the Fourth Proportional to 1,383.30, 2,073.60 and 517.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.30 : 2,073.60 = 517.01 : x
2. Step 2: Convert to fraction form
   1,383.30/2,073.60 = 517.01/x
3. Step 3: Cross multiply
   1,383.30x = 2,073.60 × 517.01
4. Step 4: Simplify right side
   1,383.30x = 1,072,061.57
5. Step 5: Solve for x
   x = 1,072,061.57/1,383.30
6. Step 6: Final answer
   x = 775.00