Finding the Fourth Proportional to 3,517,066.88, 5,272,844.31 and 1,388,744.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,517,066.88 : 5,272,844.31 = 1,388,744.09 : x
2. Step 2: Convert to fraction form
   3,517,066.88/5,272,844.31 = 1,388,744.09/x
3. Step 3: Cross multiply
   3,517,066.88x = 5,272,844.31 × 1,388,744.09
4. Step 4: Simplify right side
   3,517,066.88x = 7,322,631,373,002.63
5. Step 5: Solve for x
   x = 7,322,631,373,002.63/3,517,066.88
6. Step 6: Final answer
   x = 2,082,027.90