Finding the Fourth Proportional to 1,978.34, 2,967.24 and 517.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.34 : 2,967.24 = 517.46 : x
2. Step 2: Convert to fraction form
   1,978.34/2,967.24 = 517.46/x
3. Step 3: Cross multiply
   1,978.34x = 2,967.24 × 517.46
4. Step 4: Simplify right side
   1,978.34x = 1,535,428.01
5. Step 5: Solve for x
   x = 1,535,428.01/1,978.34
6. Step 6: Final answer
   x = 776.12