Finding the Fourth Proportional to 839,499.93, 1,158,476.18 and 457,518.51

Step by Step Solution

1. Step 1: Write the proportion equation
   839,499.93 : 1,158,476.18 = 457,518.51 : x
2. Step 2: Convert to fraction form
   839,499.93/1,158,476.18 = 457,518.51/x
3. Step 3: Cross multiply
   839,499.93x = 1,158,476.18 × 457,518.51
4. Step 4: Simplify right side
   839,499.93x = 530,024,293,456.50
5. Step 5: Solve for x
   x = 530,024,293,456.50/839,499.93
6. Step 6: Final answer
   x = 631,357.16