Finding the Fourth Proportional to 638,573.00, 956,775.56 and 385,321.37

Step by Step Solution

1. Step 1: Write the proportion equation
   638,573.00 : 956,775.56 = 385,321.37 : x
2. Step 2: Convert to fraction form
   638,573.00/956,775.56 = 385,321.37/x
3. Step 3: Cross multiply
   638,573.00x = 956,775.56 × 385,321.37
4. Step 4: Simplify right side
   638,573.00x = 368,666,062,851.23
5. Step 5: Solve for x
   x = 368,666,062,851.23/638,573.00
6. Step 6: Final answer
   x = 577,327.99