Finding the Fourth Proportional to 1,391,796.27, 1,920,667.14 and 1,277,536.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,796.27 : 1,920,667.14 = 1,277,536.46 : x
2. Step 2: Convert to fraction form
   1,391,796.27/1,920,667.14 = 1,277,536.46/x
3. Step 3: Cross multiply
   1,391,796.27x = 1,920,667.14 × 1,277,536.46
4. Step 4: Simplify right side
   1,391,796.27x = 2,453,722,289,270.59
5. Step 5: Solve for x
   x = 2,453,722,289,270.59/1,391,796.27
6. Step 6: Final answer
   x = 1,762,989.56