Finding the Fourth Proportional to 1,278,367.65, 1,762,716.86 and 1,045,066.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,367.65 : 1,762,716.86 = 1,045,066.42 : x
2. Step 2: Convert to fraction form
   1,278,367.65/1,762,716.86 = 1,045,066.42/x
3. Step 3: Cross multiply
   1,278,367.65x = 1,762,716.86 × 1,045,066.42
4. Step 4: Simplify right side
   1,278,367.65x = 1,842,156,196,559.72
5. Step 5: Solve for x
   x = 1,842,156,196,559.72/1,278,367.65
6. Step 6: Final answer
   x = 1,441,022.23