Finding the Fourth Proportional to 1,014,572.12, 1,400,081.86 and 578,981.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014,572.12 : 1,400,081.86 = 578,981.55 : x
2. Step 2: Convert to fraction form
   1,014,572.12/1,400,081.86 = 578,981.55/x
3. Step 3: Cross multiply
   1,014,572.12x = 1,400,081.86 × 578,981.55
4. Step 4: Simplify right side
   1,014,572.12x = 810,621,571,403.72
5. Step 5: Solve for x
   x = 810,621,571,403.72/1,014,572.12
6. Step 6: Final answer
   x = 798,978.76