Finding the Fourth Proportional to 1,415,904, 1,953,947.52 and 780,000

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415,904 : 1,953,947.52 = 780,000 : x
2. Step 2: Convert to fraction form
   1,415,904/1,953,947.52 = 780,000/x
3. Step 3: Cross multiply
   1,415,904x = 1,953,947.52 × 780,000
4. Step 4: Simplify right side
   1,415,904x = 1,524,079,065,600
5. Step 5: Solve for x
   x = 1,524,079,065,600/1,415,904
6. Step 6: Final answer
   x = 1,076,400