Finding the Fourth Proportional to 2,189,970.72, 3,290,788.08 and 1,179,868.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189,970.72 : 3,290,788.08 = 1,179,868.32 : x
2. Step 2: Convert to fraction form
   2,189,970.72/3,290,788.08 = 1,179,868.32/x
3. Step 3: Cross multiply
   2,189,970.72x = 3,290,788.08 × 1,179,868.32
4. Step 4: Simplify right side
   2,189,970.72x = 3,882,696,603,425.63
5. Step 5: Solve for x
   x = 3,882,696,603,425.63/2,189,970.72
6. Step 6: Final answer
   x = 1,772,944.53