Finding the Fourth Proportional to 2,592,978.32, 3,578,367.41 and 1,431,421.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,592,978.32 : 3,578,367.41 = 1,431,421.89 : x
2. Step 2: Convert to fraction form
   2,592,978.32/3,578,367.41 = 1,431,421.89/x
3. Step 3: Cross multiply
   2,592,978.32x = 3,578,367.41 × 1,431,421.89
4. Step 4: Simplify right side
   2,592,978.32x = 5,122,153,433,979.50
5. Step 5: Solve for x
   x = 5,122,153,433,979.50/2,592,978.32
6. Step 6: Final answer
   x = 1,975,393.86