Finding the Fourth Proportional to 2,628,800.31, 3,627,742.90 and 1,421,576.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628,800.31 : 3,627,742.90 = 1,421,576.31 : x
2. Step 2: Convert to fraction form
   2,628,800.31/3,627,742.90 = 1,421,576.31/x
3. Step 3: Cross multiply
   2,628,800.31x = 3,627,742.90 × 1,421,576.31
4. Step 4: Simplify right side
   2,628,800.31x = 5,157,113,365,410.70
5. Step 5: Solve for x
   x = 5,157,113,365,410.70/2,628,800.31
6. Step 6: Final answer
   x = 1,961,774.48