Finding the Fourth Proportional to 1,112,316.89, 1,668,971.59 and 512,956.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112,316.89 : 1,668,971.59 = 512,956.31 : x
2. Step 2: Convert to fraction form
   1,112,316.89/1,668,971.59 = 512,956.31/x
3. Step 3: Cross multiply
   1,112,316.89x = 1,668,971.59 × 512,956.31
4. Step 4: Simplify right side
   1,112,316.89x = 856,109,498,673.98
5. Step 5: Solve for x
   x = 856,109,498,673.98/1,112,316.89
6. Step 6: Final answer
   x = 769,663.31