Finding the Fourth Proportional to 2,605,485.74, 3,902,454.18 and 2,002,004.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605,485.74 : 3,902,454.18 = 2,002,004.78 : x
2. Step 2: Convert to fraction form
   2,605,485.74/3,902,454.18 = 2,002,004.78/x
3. Step 3: Cross multiply
   2,605,485.74x = 3,902,454.18 × 2,002,004.78
4. Step 4: Simplify right side
   2,605,485.74x = 7,812,731,922,090.98
5. Step 5: Solve for x
   x = 7,812,731,922,090.98/2,605,485.74
6. Step 6: Final answer
   x = 2,998,570.21