Finding the Fourth Proportional to 2,085,336.10, 3,128,004.15 and 1,284,019.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085,336.10 : 3,128,004.15 = 1,284,019.30 : x
2. Step 2: Convert to fraction form
   2,085,336.10/3,128,004.15 = 1,284,019.30/x
3. Step 3: Cross multiply
   2,085,336.10x = 3,128,004.15 × 1,284,019.30
4. Step 4: Simplify right side
   2,085,336.10x = 4,016,417,699,080.10
5. Step 5: Solve for x
   x = 4,016,417,699,080.10/2,085,336.10
6. Step 6: Final answer
   x = 1,926,028.95