Finding the Fourth Proportional to 740,598.72, 1,109,410.56 and 340,683.36

Step by Step Solution

1. Step 1: Write the proportion equation
   740,598.72 : 1,109,410.56 = 340,683.36 : x
2. Step 2: Convert to fraction form
   740,598.72/1,109,410.56 = 340,683.36/x
3. Step 3: Cross multiply
   740,598.72x = 1,109,410.56 × 340,683.36
4. Step 4: Simplify right side
   740,598.72x = 377,957,717,200.28
5. Step 5: Solve for x
   x = 377,957,717,200.28/740,598.72
6. Step 6: Final answer
   x = 510,340.76