Finding the Fourth Proportional to 2,340.76, 3,510.86 and 609.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.76 : 3,510.86 = 609.34 : x
2. Step 2: Convert to fraction form
   2,340.76/3,510.86 = 609.34/x
3. Step 3: Cross multiply
   2,340.76x = 3,510.86 × 609.34
4. Step 4: Simplify right side
   2,340.76x = 2,139,307.43
5. Step 5: Solve for x
   x = 2,139,307.43/2,340.76
6. Step 6: Final answer
   x = 913.94