Finding the Fourth Proportional to 1,398,667.97, 2,099,964.79 and 716,042.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398,667.97 : 2,099,964.79 = 716,042.40 : x
2. Step 2: Convert to fraction form
   1,398,667.97/2,099,964.79 = 716,042.40/x
3. Step 3: Cross multiply
   1,398,667.97x = 2,099,964.79 × 716,042.40
4. Step 4: Simplify right side
   1,398,667.97x = 1,503,663,821,167.28
5. Step 5: Solve for x
   x = 1,503,663,821,167.28/1,398,667.97
6. Step 6: Final answer
   x = 1,075,068.46