Finding the Fourth Proportional to 2,185,444.32, 3,015,900.72 and 1,218,586.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185,444.32 : 3,015,900.72 = 1,218,586.20 : x
2. Step 2: Convert to fraction form
   2,185,444.32/3,015,900.72 = 1,218,586.20/x
3. Step 3: Cross multiply
   2,185,444.32x = 3,015,900.72 × 1,218,586.20
4. Step 4: Simplify right side
   2,185,444.32x = 3,675,134,997,962.06
5. Step 5: Solve for x
   x = 3,675,134,997,962.06/2,185,444.32
6. Step 6: Final answer
   x = 1,681,642.02