Finding the Fourth Proportional to 1,435,604.20, 1,979,802.69 and 1,047,805.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,604.20 : 1,979,802.69 = 1,047,805.79 : x
2. Step 2: Convert to fraction form
   1,435,604.20/1,979,802.69 = 1,047,805.79/x
3. Step 3: Cross multiply
   1,435,604.20x = 1,979,802.69 × 1,047,805.79
4. Step 4: Simplify right side
   1,435,604.20x = 2,074,448,706,501.53
5. Step 5: Solve for x
   x = 2,074,448,706,501.53/1,435,604.20
6. Step 6: Final answer
   x = 1,445,000.45