Finding the Fourth Proportional to 2,545,190.72, 3,512,364.96 and 1,399,290.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545,190.72 : 3,512,364.96 = 1,399,290.56 : x
2. Step 2: Convert to fraction form
   2,545,190.72/3,512,364.96 = 1,399,290.56/x
3. Step 3: Cross multiply
   2,545,190.72x = 3,512,364.96 × 1,399,290.56
4. Step 4: Simplify right side
   2,545,190.72x = 4,914,819,131,802.78
5. Step 5: Solve for x
   x = 4,914,819,131,802.78/2,545,190.72
6. Step 6: Final answer
   x = 1,931,021.94