Finding the Fourth Proportional to 1,045,040.10, 1,567,171.35 and 413,823.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045,040.10 : 1,567,171.35 = 413,823.30 : x
2. Step 2: Convert to fraction form
   1,045,040.10/1,567,171.35 = 413,823.30/x
3. Step 3: Cross multiply
   1,045,040.10x = 1,567,171.35 × 413,823.30
4. Step 4: Simplify right side
   1,045,040.10x = 648,532,019,722.46
5. Step 5: Solve for x
   x = 648,532,019,722.46/1,045,040.10
6. Step 6: Final answer
   x = 620,580.99