Finding the Fourth Proportional to 2,116,736.67, 3,174,626.60 and 978,875.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,736.67 : 3,174,626.60 = 978,875.81 : x
2. Step 2: Convert to fraction form
   2,116,736.67/3,174,626.60 = 978,875.81/x
3. Step 3: Cross multiply
   2,116,736.67x = 3,174,626.60 × 978,875.81
4. Step 4: Simplify right side
   2,116,736.67x = 3,107,565,184,522.55
5. Step 5: Solve for x
   x = 3,107,565,184,522.55/2,116,736.67
6. Step 6: Final answer
   x = 1,468,092.48