Finding the Fourth Proportional to 2,780,978.10, 3,837,432.61 and 1,557,113.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,780,978.10 : 3,837,432.61 = 1,557,113.46 : x
2. Step 2: Convert to fraction form
   2,780,978.10/3,837,432.61 = 1,557,113.46/x
3. Step 3: Cross multiply
   2,780,978.10x = 3,837,432.61 × 1,557,113.46
4. Step 4: Simplify right side
   2,780,978.10x = 5,975,317,968,873.93
5. Step 5: Solve for x
   x = 5,975,317,968,873.93/2,780,978.10
6. Step 6: Final answer
   x = 2,148,638.99