Finding the Fourth Proportional to 2,599,665.40, 3,587,471.12 and 1,438,081.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599,665.40 : 3,587,471.12 = 1,438,081.39 : x
2. Step 2: Convert to fraction form
   2,599,665.40/3,587,471.12 = 1,438,081.39/x
3. Step 3: Cross multiply
   2,599,665.40x = 3,587,471.12 × 1,438,081.39
4. Step 4: Simplify right side
   2,599,665.40x = 5,159,075,454,834.46
5. Step 5: Solve for x
   x = 5,159,075,454,834.46/2,599,665.40
6. Step 6: Final answer
   x = 1,984,515.18