Finding the Fourth Proportional to 1,665,540.06, 2,298,306.84 and 977,139.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,540.06 : 2,298,306.84 = 977,139.89 : x
2. Step 2: Convert to fraction form
   1,665,540.06/2,298,306.84 = 977,139.89/x
3. Step 3: Cross multiply
   1,665,540.06x = 2,298,306.84 × 977,139.89
4. Step 4: Simplify right side
   1,665,540.06x = 2,245,767,292,823.85
5. Step 5: Solve for x
   x = 2,245,767,292,823.85/1,665,540.06
6. Step 6: Final answer
   x = 1,348,371.83