Finding the Fourth Proportional to 2,391,706.10, 3,300,553.47 and 1,303,978.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391,706.10 : 3,300,553.47 = 1,303,978.57 : x
2. Step 2: Convert to fraction form
   2,391,706.10/3,300,553.47 = 1,303,978.57/x
3. Step 3: Cross multiply
   2,391,706.10x = 3,300,553.47 × 1,303,978.57
4. Step 4: Simplify right side
   2,391,706.10x = 4,303,850,985,767.75
5. Step 5: Solve for x
   x = 4,303,850,985,767.75/2,391,706.10
6. Step 6: Final answer
   x = 1,799,489.90