Finding the Fourth Proportional to 2,175,929.89, 3,002,651.22 and 1,209,027.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175,929.89 : 3,002,651.22 = 1,209,027.07 : x
2. Step 2: Convert to fraction form
   2,175,929.89/3,002,651.22 = 1,209,027.07/x
3. Step 3: Cross multiply
   2,175,929.89x = 3,002,651.22 × 1,209,027.07
4. Step 4: Simplify right side
   2,175,929.89x = 3,630,286,606,748.53
5. Step 5: Solve for x
   x = 3,630,286,606,748.53/2,175,929.89
6. Step 6: Final answer
   x = 1,668,384.00