Finding the Fourth Proportional to 2,309,171.07, 3,186,648.06 and 1,290,575.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309,171.07 : 3,186,648.06 = 1,290,575.82 : x
2. Step 2: Convert to fraction form
   2,309,171.07/3,186,648.06 = 1,290,575.82/x
3. Step 3: Cross multiply
   2,309,171.07x = 3,186,648.06 × 1,290,575.82
4. Step 4: Simplify right side
   2,309,171.07x = 4,112,610,933,085.91
5. Step 5: Solve for x
   x = 4,112,610,933,085.91/2,309,171.07
6. Step 6: Final answer
   x = 1,780,990.15