Finding the Fourth Proportional to 1,679,445.72, 2,519,168.64 and 557,514.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679,445.72 : 2,519,168.64 = 557,514.72 : x
2. Step 2: Convert to fraction form
   1,679,445.72/2,519,168.64 = 557,514.72/x
3. Step 3: Cross multiply
   1,679,445.72x = 2,519,168.64 × 557,514.72
4. Step 4: Simplify right side
   1,679,445.72x = 1,404,473,598,962.38
5. Step 5: Solve for x
   x = 1,404,473,598,962.38/1,679,445.72
6. Step 6: Final answer
   x = 836,272.10