Finding the Fourth Proportional to 456,091.30, 683,152.80 and 377,359.30

Step by Step Solution

1. Step 1: Write the proportion equation
   456,091.30 : 683,152.80 = 377,359.30 : x
2. Step 2: Convert to fraction form
   456,091.30/683,152.80 = 377,359.30/x
3. Step 3: Cross multiply
   456,091.30x = 683,152.80 × 377,359.30
4. Step 4: Simplify right side
   456,091.30x = 257,794,062,401.04
5. Step 5: Solve for x
   x = 257,794,062,401.04/456,091.30
6. Step 6: Final answer
   x = 565,224.69