Finding the Fourth Proportional to 1,244,503.89, 1,867,028.00 and 403,140.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,244,503.89 : 1,867,028.00 = 403,140.69 : x
2. Step 2: Convert to fraction form
   1,244,503.89/1,867,028.00 = 403,140.69/x
3. Step 3: Cross multiply
   1,244,503.89x = 1,867,028.00 × 403,140.69
4. Step 4: Simplify right side
   1,244,503.89x = 752,674,954,153.62
5. Step 5: Solve for x
   x = 752,674,954,153.62/1,244,503.89
6. Step 6: Final answer
   x = 604,799.20