Finding the Fourth Proportional to 2,108,554.78, 2,909,690.46 and 1,237,272.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108,554.78 : 2,909,690.46 = 1,237,272.16 : x
2. Step 2: Convert to fraction form
   2,108,554.78/2,909,690.46 = 1,237,272.16/x
3. Step 3: Cross multiply
   2,108,554.78x = 2,909,690.46 × 1,237,272.16
4. Step 4: Simplify right side
   2,108,554.78x = 3,600,079,000,375.59
5. Step 5: Solve for x
   x = 3,600,079,000,375.59/2,108,554.78
6. Step 6: Final answer
   x = 1,707,368.02