Finding the Fourth Proportional to 1,404,336.40, 1,938,216.06 and 860,774.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,336.40 : 1,938,216.06 = 860,774.56 : x
2. Step 2: Convert to fraction form
   1,404,336.40/1,938,216.06 = 860,774.56/x
3. Step 3: Cross multiply
   1,404,336.40x = 1,938,216.06 × 860,774.56
4. Step 4: Simplify right side
   1,404,336.40x = 1,668,367,076,231.43
5. Step 5: Solve for x
   x = 1,668,367,076,231.43/1,404,336.40
6. Step 6: Final answer
   x = 1,188,010.99