Finding the Fourth Proportional to 1,249,820.69, 1,724,892.82 and 705,991.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249,820.69 : 1,724,892.82 = 705,991.51 : x
2. Step 2: Convert to fraction form
   1,249,820.69/1,724,892.82 = 705,991.51/x
3. Step 3: Cross multiply
   1,249,820.69x = 1,724,892.82 × 705,991.51
4. Step 4: Simplify right side
   1,249,820.69x = 1,217,759,686,579.96
5. Step 5: Solve for x
   x = 1,217,759,686,579.96/1,249,820.69
6. Step 6: Final answer
   x = 974,347.52