Finding the Fourth Proportional to 2,157,959.03, 2,978,008.17 and 1,191,090.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,959.03 : 2,978,008.17 = 1,191,090.09 : x
2. Step 2: Convert to fraction form
   2,157,959.03/2,978,008.17 = 1,191,090.09/x
3. Step 3: Cross multiply
   2,157,959.03x = 2,978,008.17 × 1,191,090.09
4. Step 4: Simplify right side
   2,157,959.03x = 3,547,076,022,576.18
5. Step 5: Solve for x
   x = 3,547,076,022,576.18/2,157,959.03
6. Step 6: Final answer
   x = 1,643,717.96