Finding the Fourth Proportional to 2,167,940.18, 2,991,515.35 and 1,200,830.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167,940.18 : 2,991,515.35 = 1,200,830.56 : x
2. Step 2: Convert to fraction form
   2,167,940.18/2,991,515.35 = 1,200,830.56/x
3. Step 3: Cross multiply
   2,167,940.18x = 2,991,515.35 × 1,200,830.56
4. Step 4: Simplify right side
   2,167,940.18x = 3,592,303,052,989.10
5. Step 5: Solve for x
   x = 3,592,303,052,989.10/2,167,940.18
6. Step 6: Final answer
   x = 1,657,012.07