Finding the Fourth Proportional to 709,096.24, 978,546.56 and 386,799.41

Step by Step Solution

1. Step 1: Write the proportion equation
   709,096.24 : 978,546.56 = 386,799.41 : x
2. Step 2: Convert to fraction form
   709,096.24/978,546.56 = 386,799.41/x
3. Step 3: Cross multiply
   709,096.24x = 978,546.56 × 386,799.41
4. Step 4: Simplify right side
   709,096.24x = 378,501,232,065.53
5. Step 5: Solve for x
   x = 378,501,232,065.53/709,096.24
6. Step 6: Final answer
   x = 533,779.78