Finding the Fourth Proportional to 1,755,672.72, 2,422,878.12 and 991,758.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,755,672.72 : 2,422,878.12 = 991,758.48 : x
2. Step 2: Convert to fraction form
   1,755,672.72/2,422,878.12 = 991,758.48/x
3. Step 3: Cross multiply
   1,755,672.72x = 2,422,878.12 × 991,758.48
4. Step 4: Simplify right side
   1,755,672.72x = 2,402,909,921,516.46
5. Step 5: Solve for x
   x = 2,402,909,921,516.46/1,755,672.72
6. Step 6: Final answer
   x = 1,368,654.81