Finding the Fourth Proportional to 1,405,051.82, 1,939,018.47 and 861,082.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,051.82 : 1,939,018.47 = 861,082.50 : x
2. Step 2: Convert to fraction form
   1,405,051.82/1,939,018.47 = 861,082.50/x
3. Step 3: Cross multiply
   1,405,051.82x = 1,939,018.47 × 861,082.50
4. Step 4: Simplify right side
   1,405,051.82x = 1,669,654,871,693.78
5. Step 5: Solve for x
   x = 1,669,654,871,693.78/1,405,051.82
6. Step 6: Final answer
   x = 1,188,322.63