Finding the Fourth Proportional to 1,127,826.77, 1,556,483.24 and 644,381.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,127,826.77 : 1,556,483.24 = 644,381.51 : x
2. Step 2: Convert to fraction form
   1,127,826.77/1,556,483.24 = 644,381.51/x
3. Step 3: Cross multiply
   1,127,826.77x = 1,556,483.24 × 644,381.51
4. Step 4: Simplify right side
   1,127,826.77x = 1,002,969,014,309.43
5. Step 5: Solve for x
   x = 1,002,969,014,309.43/1,127,826.77
6. Step 6: Final answer
   x = 889,293.50