Finding the Fourth Proportional to 1,045,196.10, 1,567,405.35 and 413,979.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045,196.10 : 1,567,405.35 = 413,979.30 : x
2. Step 2: Convert to fraction form
   1,045,196.10/1,567,405.35 = 413,979.30/x
3. Step 3: Cross multiply
   1,045,196.10x = 1,567,405.35 × 413,979.30
4. Step 4: Simplify right side
   1,045,196.10x = 648,873,369,609.26
5. Step 5: Solve for x
   x = 648,873,369,609.26/1,045,196.10
6. Step 6: Final answer
   x = 620,814.95