Finding the Fourth Proportional to 4,686,300.24, 7,028,072.40 and 1,990,604.04

Step by Step Solution

1. Step 1: Write the proportion equation
   4,686,300.24 : 7,028,072.40 = 1,990,604.04 : x
2. Step 2: Convert to fraction form
   4,686,300.24/7,028,072.40 = 1,990,604.04/x
3. Step 3: Cross multiply
   4,686,300.24x = 7,028,072.40 × 1,990,604.04
4. Step 4: Simplify right side
   4,686,300.24x = 13,990,109,312,852.50
5. Step 5: Solve for x
   x = 13,990,109,312,852.50/4,686,300.24
6. Step 6: Final answer
   x = 2,985,320.74