Finding the Fourth Proportional to 764,047.64, 1,146,300.64 and 308,404.42

Step by Step Solution

1. Step 1: Write the proportion equation
   764,047.64 : 1,146,300.64 = 308,404.42 : x
2. Step 2: Convert to fraction form
   764,047.64/1,146,300.64 = 308,404.42/x
3. Step 3: Cross multiply
   764,047.64x = 1,146,300.64 × 308,404.42
4. Step 4: Simplify right side
   764,047.64x = 353,524,184,024.83
5. Step 5: Solve for x
   x = 353,524,184,024.83/764,047.64
6. Step 6: Final answer
   x = 462,699.14