Finding the Fourth Proportional to 1,409,780.81, 1,945,499.48 and 765,201.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409,780.81 : 1,945,499.48 = 765,201.15 : x
2. Step 2: Convert to fraction form
   1,409,780.81/1,945,499.48 = 765,201.15/x
3. Step 3: Cross multiply
   1,409,780.81x = 1,945,499.48 × 765,201.15
4. Step 4: Simplify right side
   1,409,780.81x = 1,488,698,435,594.40
5. Step 5: Solve for x
   x = 1,488,698,435,594.40/1,409,780.81
6. Step 6: Final answer
   x = 1,055,978.65