Finding the Fourth Proportional to 2,171,820.66, 2,997,055.38 and 1,191,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,820.66 : 2,997,055.38 = 1,191,756.72 : x
2. Step 2: Convert to fraction form
   2,171,820.66/2,997,055.38 = 1,191,756.72/x
3. Step 3: Cross multiply
   2,171,820.66x = 2,997,055.38 × 1,191,756.72
4. Step 4: Simplify right side
   2,171,820.66x = 3,571,760,889,327.15
5. Step 5: Solve for x
   x = 3,571,760,889,327.15/2,171,820.66
6. Step 6: Final answer
   x = 1,644,592.92