Finding the Fourth Proportional to 2,628,141.53, 3,939,121.53 and 1,187,143.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628,141.53 : 3,939,121.53 = 1,187,143.02 : x
2. Step 2: Convert to fraction form
   2,628,141.53/3,939,121.53 = 1,187,143.02/x
3. Step 3: Cross multiply
   2,628,141.53x = 3,939,121.53 × 1,187,143.02
4. Step 4: Simplify right side
   2,628,141.53x = 4,676,300,629,271.22
5. Step 5: Solve for x
   x = 4,676,300,629,271.22/2,628,141.53
6. Step 6: Final answer
   x = 1,779,318.42