Finding the Fourth Proportional to 647,886.02, 972,109.72 and 348,016.74

Step by Step Solution

1. Step 1: Write the proportion equation
   647,886.02 : 972,109.72 = 348,016.74 : x
2. Step 2: Convert to fraction form
   647,886.02/972,109.72 = 348,016.74/x
3. Step 3: Cross multiply
   647,886.02x = 972,109.72 × 348,016.74
4. Step 4: Simplify right side
   647,886.02x = 338,310,455,676.71
5. Step 5: Solve for x
   x = 338,310,455,676.71/647,886.02
6. Step 6: Final answer
   x = 522,175.88