Finding the Fourth Proportional to 2,117,251.72, 3,174,092.34 and 918,271

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117,251.72 : 3,174,092.34 = 918,271 : x
2. Step 2: Convert to fraction form
   2,117,251.72/3,174,092.34 = 918,271/x
3. Step 3: Cross multiply
   2,117,251.72x = 3,174,092.34 × 918,271
4. Step 4: Simplify right side
   2,117,251.72x = 2,914,676,947,144.14
5. Step 5: Solve for x
   x = 2,914,676,947,144.14/2,117,251.72
6. Step 6: Final answer
   x = 1,376,632.23