Finding the Fourth Proportional to 2,165.22, 3,245.18 and 930.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.22 : 3,245.18 = 930.02 : x
2. Step 2: Convert to fraction form
   2,165.22/3,245.18 = 930.02/x
3. Step 3: Cross multiply
   2,165.22x = 3,245.18 × 930.02
4. Step 4: Simplify right side
   2,165.22x = 3,018,061.43
5. Step 5: Solve for x
   x = 3,018,061.43/2,165.22
6. Step 6: Final answer
   x = 1,393.88