Finding the Fourth Proportional to 1,405,066.56, 1,939,038.80 and 861,097.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,066.56 : 1,939,038.80 = 861,097.26 : x
2. Step 2: Convert to fraction form
   1,405,066.56/1,939,038.80 = 861,097.26/x
3. Step 3: Cross multiply
   1,405,066.56x = 1,939,038.80 × 861,097.26
4. Step 4: Simplify right side
   1,405,066.56x = 1,669,700,997,713.69
5. Step 5: Solve for x
   x = 1,669,700,997,713.69/1,405,066.56
6. Step 6: Final answer
   x = 1,188,342.99