Finding the Fourth Proportional to 978,945.63, 1,466,510.28 and 551,173.90

Step by Step Solution

1. Step 1: Write the proportion equation
   978,945.63 : 1,466,510.28 = 551,173.90 : x
2. Step 2: Convert to fraction form
   978,945.63/1,466,510.28 = 551,173.90/x
3. Step 3: Cross multiply
   978,945.63x = 1,466,510.28 × 551,173.90
4. Step 4: Simplify right side
   978,945.63x = 808,302,190,417.69
5. Step 5: Solve for x
   x = 808,302,190,417.69/978,945.63
6. Step 6: Final answer
   x = 825,686.50