Finding the Fourth Proportional to 748,559.08, 1,123,283.31 and 275,576.59

Step by Step Solution

1. Step 1: Write the proportion equation
   748,559.08 : 1,123,283.31 = 275,576.59 : x
2. Step 2: Convert to fraction form
   748,559.08/1,123,283.31 = 275,576.59/x
3. Step 3: Cross multiply
   748,559.08x = 1,123,283.31 × 275,576.59
4. Step 4: Simplify right side
   748,559.08x = 309,550,584,173.71
5. Step 5: Solve for x
   x = 309,550,584,173.71/748,559.08
6. Step 6: Final answer
   x = 413,528.59