Finding the Fourth Proportional to 2,585,870.76, 3,877,477.20 and 1,388,799.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585,870.76 : 3,877,477.20 = 1,388,799.84 : x
2. Step 2: Convert to fraction form
   2,585,870.76/3,877,477.20 = 1,388,799.84/x
3. Step 3: Cross multiply
   2,585,870.76x = 3,877,477.20 × 1,388,799.84
4. Step 4: Simplify right side
   2,585,870.76x = 5,385,039,714,963.65
5. Step 5: Solve for x
   x = 5,385,039,714,963.65/2,585,870.76
6. Step 6: Final answer
   x = 2,082,486.02