Finding the Fourth Proportional to 1,278,362.58, 1,762,709.89 and 1,045,061.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,362.58 : 1,762,709.89 = 1,045,061.36 : x
2. Step 2: Convert to fraction form
   1,278,362.58/1,762,709.89 = 1,045,061.36/x
3. Step 3: Cross multiply
   1,278,362.58x = 1,762,709.89 × 1,045,061.36
4. Step 4: Simplify right side
   1,278,362.58x = 1,842,139,994,928.85
5. Step 5: Solve for x
   x = 1,842,139,994,928.85/1,278,362.58
6. Step 6: Final answer
   x = 1,441,015.27