Finding the Fourth Proportional to 2,114,003.16, 3,171,489.12 and 916,126.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114,003.16 : 3,171,489.12 = 916,126.56 : x
2. Step 2: Convert to fraction form
   2,114,003.16/3,171,489.12 = 916,126.56/x
3. Step 3: Cross multiply
   2,114,003.16x = 3,171,489.12 × 916,126.56
4. Step 4: Simplify right side
   2,114,003.16x = 2,905,485,417,583.03
5. Step 5: Solve for x
   x = 2,905,485,417,583.03/2,114,003.16
6. Step 6: Final answer
   x = 1,374,399.75