Finding the Fourth Proportional to 1,706,538.72, 2,560,189.89 and 641,590

Step by Step Solution

1. Step 1: Write the proportion equation
   1,706,538.72 : 2,560,189.89 = 641,590 : x
2. Step 2: Convert to fraction form
   1,706,538.72/2,560,189.89 = 641,590/x
3. Step 3: Cross multiply
   1,706,538.72x = 2,560,189.89 × 641,590
4. Step 4: Simplify right side
   1,706,538.72x = 1,642,592,231,525.10
5. Step 5: Solve for x
   x = 1,642,592,231,525.10/1,706,538.72
6. Step 6: Final answer
   x = 962,528.55