Finding the Fourth Proportional to 2,271,836.16, 3,134,574.72 and 1,388,561.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271,836.16 : 3,134,574.72 = 1,388,561.76 : x
2. Step 2: Convert to fraction form
   2,271,836.16/3,134,574.72 = 1,388,561.76/x
3. Step 3: Cross multiply
   2,271,836.16x = 3,134,574.72 × 1,388,561.76
4. Step 4: Simplify right side
   2,271,836.16x = 4,352,550,590,054.71
5. Step 5: Solve for x
   x = 4,352,550,590,054.71/2,271,836.16
6. Step 6: Final answer
   x = 1,915,873.45