Finding the Fourth Proportional to 778,513.64, 1,074,375.50 and 451,801.49

Step by Step Solution

1. Step 1: Write the proportion equation
   778,513.64 : 1,074,375.50 = 451,801.49 : x
2. Step 2: Convert to fraction form
   778,513.64/1,074,375.50 = 451,801.49/x
3. Step 3: Cross multiply
   778,513.64x = 1,074,375.50 × 451,801.49
4. Step 4: Simplify right side
   778,513.64x = 485,404,444,088.61
5. Step 5: Solve for x
   x = 485,404,444,088.61/778,513.64
6. Step 6: Final answer
   x = 623,501.53