Finding the Fourth Proportional to 789,620.22, 1,184,513.31 and 257,182.72

Step by Step Solution

1. Step 1: Write the proportion equation
   789,620.22 : 1,184,513.31 = 257,182.72 : x
2. Step 2: Convert to fraction form
   789,620.22/1,184,513.31 = 257,182.72/x
3. Step 3: Cross multiply
   789,620.22x = 1,184,513.31 × 257,182.72
4. Step 4: Simplify right side
   789,620.22x = 304,636,352,496.93
5. Step 5: Solve for x
   x = 304,636,352,496.93/789,620.22
6. Step 6: Final answer
   x = 385,801.10