Finding the Fourth Proportional to 1,200,548.79, 1,800,826.22 and 490,576.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,548.79 : 1,800,826.22 = 490,576.91 : x
2. Step 2: Convert to fraction form
   1,200,548.79/1,800,826.22 = 490,576.91/x
3. Step 3: Cross multiply
   1,200,548.79x = 1,800,826.22 × 490,576.91
4. Step 4: Simplify right side
   1,200,548.79x = 883,443,754,676.89
5. Step 5: Solve for x
   x = 883,443,754,676.89/1,200,548.79
6. Step 6: Final answer
   x = 735,866.60