Finding the Fourth Proportional to 978,196.70, 1,371,963.70 and 978,196.70

Step by Step Solution

1. Step 1: Write the proportion equation
   978,196.70 : 1,371,963.70 = 978,196.70 : x
2. Step 2: Convert to fraction form
   978,196.70/1,371,963.70 = 978,196.70/x
3. Step 3: Cross multiply
   978,196.70x = 1,371,963.70 × 978,196.70
4. Step 4: Simplify right side
   978,196.70x = 1,342,050,363,859.79
5. Step 5: Solve for x
   x = 1,342,050,363,859.79/978,196.70
6. Step 6: Final answer
   x = 1,371,963.70