Finding the Fourth Proportional to 647,030, 892,911.12 and 375,118.40

Step by Step Solution

1. Step 1: Write the proportion equation
   647,030 : 892,911.12 = 375,118.40 : x
2. Step 2: Convert to fraction form
   647,030/892,911.12 = 375,118.40/x
3. Step 3: Cross multiply
   647,030x = 892,911.12 × 375,118.40
4. Step 4: Simplify right side
   647,030x = 334,947,390,676.61
5. Step 5: Solve for x
   x = 334,947,390,676.61/647,030
6. Step 6: Final answer
   x = 517,669.03