Finding the Fourth Proportional to 2,175,980.32, 3,002,788.24 and 1,209,086.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175,980.32 : 3,002,788.24 = 1,209,086.88 : x
2. Step 2: Convert to fraction form
   2,175,980.32/3,002,788.24 = 1,209,086.88/x
3. Step 3: Cross multiply
   2,175,980.32x = 3,002,788.24 × 1,209,086.88
4. Step 4: Simplify right side
   2,175,980.32x = 3,630,631,864,402.29
5. Step 5: Solve for x
   x = 3,630,631,864,402.29/2,175,980.32
6. Step 6: Final answer
   x = 1,668,504.00