Finding the Fourth Proportional to 1,316.72, 1,815.25 and 943.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316.72 : 1,815.25 = 943.03 : x
2. Step 2: Convert to fraction form
   1,316.72/1,815.25 = 943.03/x
3. Step 3: Cross multiply
   1,316.72x = 1,815.25 × 943.03
4. Step 4: Simplify right side
   1,316.72x = 1,711,833.01
5. Step 5: Solve for x
   x = 1,711,833.01/1,316.72
6. Step 6: Final answer
   x = 1,300.08