Finding the Fourth Proportional to 2,116,433.51, 3,174,171.51 and 978,575.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,433.51 : 3,174,171.51 = 978,575.68 : x
2. Step 2: Convert to fraction form
   2,116,433.51/3,174,171.51 = 978,575.68/x
3. Step 3: Cross multiply
   2,116,433.51x = 3,174,171.51 × 978,575.68
4. Step 4: Simplify right side
   2,116,433.51x = 3,106,167,038,942.00
5. Step 5: Solve for x
   x = 3,106,167,038,942.00/2,116,433.51
6. Step 6: Final answer
   x = 1,467,642.16