Finding the Fourth Proportional to 689,981.83, 1,035,014.27 and 216,667.19

Step by Step Solution

1. Step 1: Write the proportion equation
   689,981.83 : 1,035,014.27 = 216,667.19 : x
2. Step 2: Convert to fraction form
   689,981.83/1,035,014.27 = 216,667.19/x
3. Step 3: Cross multiply
   689,981.83x = 1,035,014.27 × 216,667.19
4. Step 4: Simplify right side
   689,981.83x = 224,253,634,995.00
5. Step 5: Solve for x
   x = 224,253,634,995.00/689,981.83
6. Step 6: Final answer
   x = 325,013.83