Finding the Fourth Proportional to 1,932.34, 2,665.64 and 1,222.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.34 : 2,665.64 = 1,222.98 : x
2. Step 2: Convert to fraction form
   1,932.34/2,665.64 = 1,222.98/x
3. Step 3: Cross multiply
   1,932.34x = 2,665.64 × 1,222.98
4. Step 4: Simplify right side
   1,932.34x = 3,260,018.29
5. Step 5: Solve for x
   x = 3,260,018.29/1,932.34
6. Step 6: Final answer
   x = 1,687.09