Finding the Fourth Proportional to 1,116,752.03, 1,670,900.83 and 661,587.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,752.03 : 1,670,900.83 = 661,587.61 : x
2. Step 2: Convert to fraction form
   1,116,752.03/1,670,900.83 = 661,587.61/x
3. Step 3: Cross multiply
   1,116,752.03x = 1,670,900.83 × 661,587.61
4. Step 4: Simplify right side
   1,116,752.03x = 1,105,447,283,968.43
5. Step 5: Solve for x
   x = 1,105,447,283,968.43/1,116,752.03
6. Step 6: Final answer
   x = 989,877.12