Finding the Fourth Proportional to 1,248,716, 1,872,315.52 and 489,648.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,716 : 1,872,315.52 = 489,648.06 : x
2. Step 2: Convert to fraction form
   1,248,716/1,872,315.52 = 489,648.06/x
3. Step 3: Cross multiply
   1,248,716x = 1,872,315.52 × 489,648.06
4. Step 4: Simplify right side
   1,248,716x = 916,775,662,075.89
5. Step 5: Solve for x
   x = 916,775,662,075.89/1,248,716
6. Step 6: Final answer
   x = 734,174.67