Finding the Fourth Proportional to 774,256.32, 1,160,932.50 and 300,388.10

Step by Step Solution

1. Step 1: Write the proportion equation
   774,256.32 : 1,160,932.50 = 300,388.10 : x
2. Step 2: Convert to fraction form
   774,256.32/1,160,932.50 = 300,388.10/x
3. Step 3: Cross multiply
   774,256.32x = 1,160,932.50 × 300,388.10
4. Step 4: Simplify right side
   774,256.32x = 348,730,302,098.59
5. Step 5: Solve for x
   x = 348,730,302,098.59/774,256.32
6. Step 6: Final answer
   x = 450,406.79