Finding the Fourth Proportional to 1,004,443.56, 1,506,279.82 and 427,701.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004,443.56 : 1,506,279.82 = 427,701.48 : x
2. Step 2: Convert to fraction form
   1,004,443.56/1,506,279.82 = 427,701.48/x
3. Step 3: Cross multiply
   1,004,443.56x = 1,506,279.82 × 427,701.48
4. Step 4: Simplify right side
   1,004,443.56x = 644,238,108,308.13
5. Step 5: Solve for x
   x = 644,238,108,308.13/1,004,443.56
6. Step 6: Final answer
   x = 641,388.06