Finding the Fourth Proportional to 1,245,808.72, 1,868,402.04 and 404,601.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,245,808.72 : 1,868,402.04 = 404,601.04 : x
2. Step 2: Convert to fraction form
   1,245,808.72/1,868,402.04 = 404,601.04/x
3. Step 3: Cross multiply
   1,245,808.72x = 1,868,402.04 × 404,601.04
4. Step 4: Simplify right side
   1,245,808.72x = 755,957,408,522.12
5. Step 5: Solve for x
   x = 755,957,408,522.12/1,245,808.72
6. Step 6: Final answer
   x = 606,800.54