Finding the Fourth Proportional to 2,536,051.36, 3,499,840.56 and 1,390,131.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,536,051.36 : 3,499,840.56 = 1,390,131.40 : x
2. Step 2: Convert to fraction form
   2,536,051.36/3,499,840.56 = 1,390,131.40/x
3. Step 3: Cross multiply
   2,536,051.36x = 3,499,840.56 × 1,390,131.40
4. Step 4: Simplify right side
   2,536,051.36x = 4,865,238,257,449.58
5. Step 5: Solve for x
   x = 4,865,238,257,449.58/2,536,051.36
6. Step 6: Final answer
   x = 1,918,430.49