Finding the Fourth Proportional to 2,623,484.28, 3,620,415.42 and 1,521,129.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623,484.28 : 3,620,415.42 = 1,521,129.72 : x
2. Step 2: Convert to fraction form
   2,623,484.28/3,620,415.42 = 1,521,129.72/x
3. Step 3: Cross multiply
   2,623,484.28x = 3,620,415.42 × 1,521,129.72
4. Step 4: Simplify right side
   2,623,484.28x = 5,507,121,494,108.28
5. Step 5: Solve for x
   x = 5,507,121,494,108.28/2,623,484.28
6. Step 6: Final answer
   x = 2,099,163.14