Finding the Fourth Proportional to 2,105,079.09, 2,904,995.03 and 1,187,315.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,079.09 : 2,904,995.03 = 1,187,315.81 : x
2. Step 2: Convert to fraction form
   2,105,079.09/2,904,995.03 = 1,187,315.81/x
3. Step 3: Cross multiply
   2,105,079.09x = 2,904,995.03 × 1,187,315.81
4. Step 4: Simplify right side
   2,105,079.09x = 3,449,146,527,090.42
5. Step 5: Solve for x
   x = 3,449,146,527,090.42/2,105,079.09
6. Step 6: Final answer
   x = 1,638,487.86