Finding the Fourth Proportional to 1,007,662.84, 1,390,725.90 and 765,547

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,662.84 : 1,390,725.90 = 765,547 : x
2. Step 2: Convert to fraction form
   1,007,662.84/1,390,725.90 = 765,547/x
3. Step 3: Cross multiply
   1,007,662.84x = 1,390,725.90 × 765,547
4. Step 4: Simplify right side
   1,007,662.84x = 1,064,666,040,567.30
5. Step 5: Solve for x
   x = 1,064,666,040,567.30/1,007,662.84
6. Step 6: Final answer
   x = 1,056,569.72