Finding the Fourth Proportional to 1,171,005.33, 1,615,364.02 and 712,260.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171,005.33 : 1,615,364.02 = 712,260.21 : x
2. Step 2: Convert to fraction form
   1,171,005.33/1,615,364.02 = 712,260.21/x
3. Step 3: Cross multiply
   1,171,005.33x = 1,615,364.02 × 712,260.21
4. Step 4: Simplify right side
   1,171,005.33x = 1,150,559,506,937.89
5. Step 5: Solve for x
   x = 1,150,559,506,937.89/1,171,005.33
6. Step 6: Final answer
   x = 982,539.94