Finding the Fourth Proportional to 2,140,158.68, 2,953,443.16 and 1,222,509.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,158.68 : 2,953,443.16 = 1,222,509.28 : x
2. Step 2: Convert to fraction form
   2,140,158.68/2,953,443.16 = 1,222,509.28/x
3. Step 3: Cross multiply
   2,140,158.68x = 2,953,443.16 × 1,222,509.28
4. Step 4: Simplify right side
   2,140,158.68x = 3,610,611,671,052.53
5. Step 5: Solve for x
   x = 3,610,611,671,052.53/2,140,158.68
6. Step 6: Final answer
   x = 1,687,076.62