Finding the Fourth Proportional to 1,128,030.33, 1,556,684.43 and 644,594.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,030.33 : 1,556,684.43 = 644,594.32 : x
2. Step 2: Convert to fraction form
   1,128,030.33/1,556,684.43 = 644,594.32/x
3. Step 3: Cross multiply
   1,128,030.33x = 1,556,684.43 × 644,594.32
4. Step 4: Simplify right side
   1,128,030.33x = 1,003,429,941,139.06
5. Step 5: Solve for x
   x = 1,003,429,941,139.06/1,128,030.33
6. Step 6: Final answer
   x = 889,541.63