Finding the Fourth Proportional to 1,931,399.56, 2,665,661.25 and 1,115,456.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931,399.56 : 2,665,661.25 = 1,115,456.59 : x
2. Step 2: Convert to fraction form
   1,931,399.56/2,665,661.25 = 1,115,456.59/x
3. Step 3: Cross multiply
   1,931,399.56x = 2,665,661.25 × 1,115,456.59
4. Step 4: Simplify right side
   1,931,399.56x = 2,973,429,408,020.14
5. Step 5: Solve for x
   x = 2,973,429,408,020.14/1,931,399.56
6. Step 6: Final answer
   x = 1,539,520.60