Finding the Fourth Proportional to 1,367,839.84, 1,888,145.76 and 1,224,346.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367,839.84 : 1,888,145.76 = 1,224,346.72 : x
2. Step 2: Convert to fraction form
   1,367,839.84/1,888,145.76 = 1,224,346.72/x
3. Step 3: Cross multiply
   1,367,839.84x = 1,888,145.76 × 1,224,346.72
4. Step 4: Simplify right side
   1,367,839.84x = 2,311,745,068,137.91
5. Step 5: Solve for x
   x = 2,311,745,068,137.91/1,367,839.84
6. Step 6: Final answer
   x = 1,690,069.99