Finding the Fourth Proportional to 1,108,040.48, 1,662,060.72 and 266,592.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108,040.48 : 1,662,060.72 = 266,592.24 : x
2. Step 2: Convert to fraction form
   1,108,040.48/1,662,060.72 = 266,592.24/x
3. Step 3: Cross multiply
   1,108,040.48x = 1,662,060.72 × 266,592.24
4. Step 4: Simplify right side
   1,108,040.48x = 443,092,490,360.81
5. Step 5: Solve for x
   x = 443,092,490,360.81/1,108,040.48
6. Step 6: Final answer
   x = 399,888.36