Finding the Fourth Proportional to 1,238,632.24, 1,709,346.72 and 755,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,632.24 : 1,709,346.72 = 755,086.72 : x
2. Step 2: Convert to fraction form
   1,238,632.24/1,709,346.72 = 755,086.72/x
3. Step 3: Cross multiply
   1,238,632.24x = 1,709,346.72 × 755,086.72
4. Step 4: Simplify right side
   1,238,632.24x = 1,290,705,008,147.56
5. Step 5: Solve for x
   x = 1,290,705,008,147.56/1,238,632.24
6. Step 6: Final answer
   x = 1,042,040.54