Finding the Fourth Proportional to 2,070.14, 3,105.32 and 609.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.14 : 3,105.32 = 609.30 : x
2. Step 2: Convert to fraction form
   2,070.14/3,105.32 = 609.30/x
3. Step 3: Cross multiply
   2,070.14x = 3,105.32 × 609.30
4. Step 4: Simplify right side
   2,070.14x = 1,892,068.43
5. Step 5: Solve for x
   x = 1,892,068.43/2,070.14
6. Step 6: Final answer
   x = 913.98