Finding the Fourth Proportional to 1,368,748.65, 2,053,100.38 and 409,206.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,748.65 : 2,053,100.38 = 409,206.50 : x
2. Step 2: Convert to fraction form
   1,368,748.65/2,053,100.38 = 409,206.50/x
3. Step 3: Cross multiply
   1,368,748.65x = 2,053,100.38 × 409,206.50
4. Step 4: Simplify right side
   1,368,748.65x = 840,142,020,648.47
5. Step 5: Solve for x
   x = 840,142,020,648.47/1,368,748.65
6. Step 6: Final answer
   x = 613,802.99