Finding the Fourth Proportional to 1,315,472.51, 1,973,213.33 and 404,648.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315,472.51 : 1,973,213.33 = 404,648.82 : x
2. Step 2: Convert to fraction form
   1,315,472.51/1,973,213.33 = 404,648.82/x
3. Step 3: Cross multiply
   1,315,472.51x = 1,973,213.33 × 404,648.82
4. Step 4: Simplify right side
   1,315,472.51x = 798,458,445,810.50
5. Step 5: Solve for x
   x = 798,458,445,810.50/1,315,472.51
6. Step 6: Final answer
   x = 606,974.64