Finding the Fourth Proportional to 2,154,571.78, 2,973,329.76 and 1,187,736.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,571.78 : 2,973,329.76 = 1,187,736.67 : x
2. Step 2: Convert to fraction form
   2,154,571.78/2,973,329.76 = 1,187,736.67/x
3. Step 3: Cross multiply
   2,154,571.78x = 2,973,329.76 × 1,187,736.67
4. Step 4: Simplify right side
   2,154,571.78x = 3,531,532,789,443.96
5. Step 5: Solve for x
   x = 3,531,532,789,443.96/2,154,571.78
6. Step 6: Final answer
   x = 1,639,088.02