Finding the Fourth Proportional to 1,355,978.41, 2,021,987.39 and 1,343,807.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,978.41 : 2,021,987.39 = 1,343,807.76 : x
2. Step 2: Convert to fraction form
   1,355,978.41/2,021,987.39 = 1,343,807.76/x
3. Step 3: Cross multiply
   1,355,978.41x = 2,021,987.39 × 1,343,807.76
4. Step 4: Simplify right side
   1,355,978.41x = 2,717,162,342,760.97
5. Step 5: Solve for x
   x = 2,717,162,342,760.97/1,355,978.41
6. Step 6: Final answer
   x = 2,003,838.94