Finding the Fourth Proportional to 680,846.02, 939,568.89 and 379,050.82

Step by Step Solution

1. Step 1: Write the proportion equation
   680,846.02 : 939,568.89 = 379,050.82 : x
2. Step 2: Convert to fraction form
   680,846.02/939,568.89 = 379,050.82/x
3. Step 3: Cross multiply
   680,846.02x = 939,568.89 × 379,050.82
4. Step 4: Simplify right side
   680,846.02x = 356,144,358,200.99
5. Step 5: Solve for x
   x = 356,144,358,200.99/680,846.02
6. Step 6: Final answer
   x = 523,090.90