Finding the Fourth Proportional to 2,127,009.72, 3,191,132.34 and 687,662.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127,009.72 : 3,191,132.34 = 687,662.40 : x
2. Step 2: Convert to fraction form
   2,127,009.72/3,191,132.34 = 687,662.40/x
3. Step 3: Cross multiply
   2,127,009.72x = 3,191,132.34 × 687,662.40
4. Step 4: Simplify right side
   2,127,009.72x = 2,194,421,723,642.02
5. Step 5: Solve for x
   x = 2,194,421,723,642.02/2,127,009.72
6. Step 6: Final answer
   x = 1,031,693.32