Finding the Fourth Proportional to 1,910,377.89, 2,636,081.33 and 1,291,528.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910,377.89 : 2,636,081.33 = 1,291,528.80 : x
2. Step 2: Convert to fraction form
   1,910,377.89/2,636,081.33 = 1,291,528.80/x
3. Step 3: Cross multiply
   1,910,377.89x = 2,636,081.33 × 1,291,528.80
4. Step 4: Simplify right side
   1,910,377.89x = 3,404,574,950,379.66
5. Step 5: Solve for x
   x = 3,404,574,950,379.66/1,910,377.89
6. Step 6: Final answer
   x = 1,782,147.38