Finding the Fourth Proportional to 1,300,653.68, 1,951,694.54 and 661,012.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300,653.68 : 1,951,694.54 = 661,012.58 : x
2. Step 2: Convert to fraction form
   1,300,653.68/1,951,694.54 = 661,012.58/x
3. Step 3: Cross multiply
   1,300,653.68x = 1,951,694.54 × 661,012.58
4. Step 4: Simplify right side
   1,300,653.68x = 1,290,094,643,257.31
5. Step 5: Solve for x
   x = 1,290,094,643,257.31/1,300,653.68
6. Step 6: Final answer
   x = 991,881.75