Finding the Fourth Proportional to 3,978,802.80, 5,969,968.32 and 2,085,094.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978,802.80 : 5,969,968.32 = 2,085,094.08 : x
2. Step 2: Convert to fraction form
   3,978,802.80/5,969,968.32 = 2,085,094.08/x
3. Step 3: Cross multiply
   3,978,802.80x = 5,969,968.32 × 2,085,094.08
4. Step 4: Simplify right side
   3,978,802.80x = 12,447,945,601,819.55
5. Step 5: Solve for x
   x = 12,447,945,601,819.55/3,978,802.80
6. Step 6: Final answer
   x = 3,128,565.61