Finding the Fourth Proportional to 2,518,620.10, 3,779,046.87 and 1,320,256.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518,620.10 : 3,779,046.87 = 1,320,256.42 : x
2. Step 2: Convert to fraction form
   2,518,620.10/3,779,046.87 = 1,320,256.42/x
3. Step 3: Cross multiply
   2,518,620.10x = 3,779,046.87 × 1,320,256.42
4. Step 4: Simplify right side
   2,518,620.10x = 4,989,310,891,598.41
5. Step 5: Solve for x
   x = 4,989,310,891,598.41/2,518,620.10
6. Step 6: Final answer
   x = 1,980,970.01