Finding the Fourth Proportional to 1,316.47, 1,816.52 and 756.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316.47 : 1,816.52 = 756.83 : x
2. Step 2: Convert to fraction form
   1,316.47/1,816.52 = 756.83/x
3. Step 3: Cross multiply
   1,316.47x = 1,816.52 × 756.83
4. Step 4: Simplify right side
   1,316.47x = 1,374,800.43
5. Step 5: Solve for x
   x = 1,374,800.43/1,316.47
6. Step 6: Final answer
   x = 1,044.31