Finding the Fourth Proportional to 1,123,019.07, 1,684,344.06 and 403,211.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,019.07 : 1,684,344.06 = 403,211.76 : x
2. Step 2: Convert to fraction form
   1,123,019.07/1,684,344.06 = 403,211.76/x
3. Step 3: Cross multiply
   1,123,019.07x = 1,684,344.06 × 403,211.76
4. Step 4: Simplify right side
   1,123,019.07x = 679,147,332,878.15
5. Step 5: Solve for x
   x = 679,147,332,878.15/1,123,019.07
6. Step 6: Final answer
   x = 604,751.38