Finding the Fourth Proportional to 876,406.66, 1,314,685.25 and 307,738.88

Step by Step Solution

1. Step 1: Write the proportion equation
   876,406.66 : 1,314,685.25 = 307,738.88 : x
2. Step 2: Convert to fraction form
   876,406.66/1,314,685.25 = 307,738.88/x
3. Step 3: Cross multiply
   876,406.66x = 1,314,685.25 × 307,738.88
4. Step 4: Simplify right side
   876,406.66x = 404,579,763,870.15
5. Step 5: Solve for x
   x = 404,579,763,870.15/876,406.66
6. Step 6: Final answer
   x = 461,634.75