Finding the Fourth Proportional to 2,105,143.22, 2,905,099.32 and 1,138,274.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,143.22 : 2,905,099.32 = 1,138,274.17 : x
2. Step 2: Convert to fraction form
   2,105,143.22/2,905,099.32 = 1,138,274.17/x
3. Step 3: Cross multiply
   2,105,143.22x = 2,905,099.32 × 1,138,274.17
4. Step 4: Simplify right side
   2,105,143.22x = 3,306,799,514,246.34
5. Step 5: Solve for x
   x = 3,306,799,514,246.34/2,105,143.22
6. Step 6: Final answer
   x = 1,570,819.26