Finding the Fourth Proportional to 1,626,936.71, 2,245,168.78 and 891,889.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626,936.71 : 2,245,168.78 = 891,889.69 : x
2. Step 2: Convert to fraction form
   1,626,936.71/2,245,168.78 = 891,889.69/x
3. Step 3: Cross multiply
   1,626,936.71x = 2,245,168.78 × 891,889.69
4. Step 4: Simplify right side
   1,626,936.71x = 2,002,442,887,191.88
5. Step 5: Solve for x
   x = 2,002,442,887,191.88/1,626,936.71
6. Step 6: Final answer
   x = 1,230,805.65