Finding the Fourth Proportional to 1,994,980.52, 2,992,891.12 and 647,038.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994,980.52 : 2,992,891.12 = 647,038.10 : x
2. Step 2: Convert to fraction form
   1,994,980.52/2,992,891.12 = 647,038.10/x
3. Step 3: Cross multiply
   1,994,980.52x = 2,992,891.12 × 647,038.10
4. Step 4: Simplify right side
   1,994,980.52x = 1,936,514,589,656.30
5. Step 5: Solve for x
   x = 1,936,514,589,656.30/1,994,980.52
6. Step 6: Final answer
   x = 970,693.48