Finding the Fourth Proportional to 2,536,048.36, 3,499,836.42 and 1,390,128.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,536,048.36 : 3,499,836.42 = 1,390,128.40 : x
2. Step 2: Convert to fraction form
   2,536,048.36/3,499,836.42 = 1,390,128.40/x
3. Step 3: Cross multiply
   2,536,048.36x = 3,499,836.42 × 1,390,128.40
4. Step 4: Simplify right side
   2,536,048.36x = 4,865,222,002,796.33
5. Step 5: Solve for x
   x = 4,865,222,002,796.33/2,536,048.36
6. Step 6: Final answer
   x = 1,918,426.35