Finding the Fourth Proportional to 2,615,665.28, 3,609,502.88 and 1,528,037.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615,665.28 : 3,609,502.88 = 1,528,037.76 : x
2. Step 2: Convert to fraction form
   2,615,665.28/3,609,502.88 = 1,528,037.76/x
3. Step 3: Cross multiply
   2,615,665.28x = 3,609,502.88 × 1,528,037.76
4. Step 4: Simplify right side
   2,615,665.28x = 5,515,456,695,468.75
5. Step 5: Solve for x
   x = 5,515,456,695,468.75/2,615,665.28
6. Step 6: Final answer
   x = 2,108,624.81