Finding the Fourth Proportional to 2,636,623.86, 3,638,638.90 and 1,490,635.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636,623.86 : 3,638,638.90 = 1,490,635.86 : x
2. Step 2: Convert to fraction form
   2,636,623.86/3,638,638.90 = 1,490,635.86/x
3. Step 3: Cross multiply
   2,636,623.86x = 3,638,638.90 × 1,490,635.86
4. Step 4: Simplify right side
   2,636,623.86x = 5,423,885,625,930.95
5. Step 5: Solve for x
   x = 5,423,885,625,930.95/2,636,623.86
6. Step 6: Final answer
   x = 2,057,132.88