Finding the Fourth Proportional to 2,105,707.62, 2,905,876.52 and 1,138,837.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,707.62 : 2,905,876.52 = 1,138,837.91 : x
2. Step 2: Convert to fraction form
   2,105,707.62/2,905,876.52 = 1,138,837.91/x
3. Step 3: Cross multiply
   2,105,707.62x = 2,905,876.52 × 1,138,837.91
4. Step 4: Simplify right side
   2,105,707.62x = 3,309,322,337,060.68
5. Step 5: Solve for x
   x = 3,309,322,337,060.68/2,105,707.62
6. Step 6: Final answer
   x = 1,571,596.32