Finding the Fourth Proportional to 2,083,780.60, 3,120,422.10 and 1,663,876.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083,780.60 : 3,120,422.10 = 1,663,876.60 : x
2. Step 2: Convert to fraction form
   2,083,780.60/3,120,422.10 = 1,663,876.60/x
3. Step 3: Cross multiply
   2,083,780.60x = 3,120,422.10 × 1,663,876.60
4. Step 4: Simplify right side
   2,083,780.60x = 5,191,997,314,312.86
5. Step 5: Solve for x
   x = 5,191,997,314,312.86/2,083,780.60
6. Step 6: Final answer
   x = 2,491,623.79