Finding the Fourth Proportional to 2,109,439.40, 2,909,112.98 and 1,384,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,439.40 : 2,909,112.98 = 1,384,011.50 : x
2. Step 2: Convert to fraction form
   2,109,439.40/2,909,112.98 = 1,384,011.50/x
3. Step 3: Cross multiply
   2,109,439.40x = 2,909,112.98 × 1,384,011.50
4. Step 4: Simplify right side
   2,109,439.40x = 4,026,245,797,653.65
5. Step 5: Solve for x
   x = 4,026,245,797,653.65/2,109,439.40
6. Step 6: Final answer
   x = 1,908,680.48