Finding the Fourth Proportional to 1,020,865.50, 1,531,181.52 and 272,969.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020,865.50 : 1,531,181.52 = 272,969.82 : x
2. Step 2: Convert to fraction form
   1,020,865.50/1,531,181.52 = 272,969.82/x
3. Step 3: Cross multiply
   1,020,865.50x = 1,531,181.52 × 272,969.82
4. Step 4: Simplify right side
   1,020,865.50x = 417,966,343,901.73
5. Step 5: Solve for x
   x = 417,966,343,901.73/1,020,865.50
6. Step 6: Final answer
   x = 409,423.52