Finding the Fourth Proportional to 1,911,323.61, 2,638,144.71 and 1,127,074.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,911,323.61 : 2,638,144.71 = 1,127,074.46 : x
2. Step 2: Convert to fraction form
   1,911,323.61/2,638,144.71 = 1,127,074.46/x
3. Step 3: Cross multiply
   1,911,323.61x = 2,638,144.71 × 1,127,074.46
4. Step 4: Simplify right side
   1,911,323.61x = 2,973,385,511,234.38
5. Step 5: Solve for x
   x = 2,973,385,511,234.38/1,911,323.61
6. Step 6: Final answer
   x = 1,555,668.28