Finding the Fourth Proportional to 1,111,670.61, 1,533,513.81 and 676,221.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,670.61 : 1,533,513.81 = 676,221.09 : x
2. Step 2: Convert to fraction form
   1,111,670.61/1,533,513.81 = 676,221.09/x
3. Step 3: Cross multiply
   1,111,670.61x = 1,533,513.81 × 676,221.09
4. Step 4: Simplify right side
   1,111,670.61x = 1,036,994,380,128.25
5. Step 5: Solve for x
   x = 1,036,994,380,128.25/1,111,670.61
6. Step 6: Final answer
   x = 932,825.22