Finding the Fourth Proportional to 2,138,488.64, 2,951,116.44 and 1,158,429.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,488.64 : 2,951,116.44 = 1,158,429.86 : x
2. Step 2: Convert to fraction form
   2,138,488.64/2,951,116.44 = 1,158,429.86/x
3. Step 3: Cross multiply
   2,138,488.64x = 2,951,116.44 × 1,158,429.86
4. Step 4: Simplify right side
   2,138,488.64x = 3,418,661,404,432.90
5. Step 5: Solve for x
   x = 3,418,661,404,432.90/2,138,488.64
6. Step 6: Final answer
   x = 1,598,634.35