Finding the Fourth Proportional to 2,271,556.28, 3,404,934.18 and 991,042.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271,556.28 : 3,404,934.18 = 991,042.26 : x
2. Step 2: Convert to fraction form
   2,271,556.28/3,404,934.18 = 991,042.26/x
3. Step 3: Cross multiply
   2,271,556.28x = 3,404,934.18 × 991,042.26
4. Step 4: Simplify right side
   2,271,556.28x = 3,374,433,664,898.45
5. Step 5: Solve for x
   x = 3,374,433,664,898.45/2,271,556.28
6. Step 6: Final answer
   x = 1,485,516.21