Finding the Fourth Proportional to 1,288,009.55, 1,932,020.98 and 755,156.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,009.55 : 1,932,020.98 = 755,156.91 : x
2. Step 2: Convert to fraction form
   1,288,009.55/1,932,020.98 = 755,156.91/x
3. Step 3: Cross multiply
   1,288,009.55x = 1,932,020.98 × 755,156.91
4. Step 4: Simplify right side
   1,288,009.55x = 1,458,978,992,580.32
5. Step 5: Solve for x
   x = 1,458,978,992,580.32/1,288,009.55
6. Step 6: Final answer
   x = 1,132,739.27