Finding the Fourth Proportional to 1,424,196.47, 1,965,341.87 and 812,547.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424,196.47 : 1,965,341.87 = 812,547.25 : x
2. Step 2: Convert to fraction form
   1,424,196.47/1,965,341.87 = 812,547.25/x
3. Step 3: Cross multiply
   1,424,196.47x = 1,965,341.87 × 812,547.25
4. Step 4: Simplify right side
   1,424,196.47x = 1,596,933,117,888.91
5. Step 5: Solve for x
   x = 1,596,933,117,888.91/1,424,196.47
6. Step 6: Final answer
   x = 1,121,287.09