Finding the Fourth Proportional to 683,196.93, 1,024,807.55 and 209,886.39

Step by Step Solution

1. Step 1: Write the proportion equation
   683,196.93 : 1,024,807.55 = 209,886.39 : x
2. Step 2: Convert to fraction form
   683,196.93/1,024,807.55 = 209,886.39/x
3. Step 3: Cross multiply
   683,196.93x = 1,024,807.55 × 209,886.39
4. Step 4: Simplify right side
   683,196.93x = 215,093,156,064.81
5. Step 5: Solve for x
   x = 215,093,156,064.81/683,196.93
6. Step 6: Final answer
   x = 314,833.32