Finding the Fourth Proportional to 1,298,300.63, 1,791,621.86 and 725,345.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,300.63 : 1,791,621.86 = 725,345.10 : x
2. Step 2: Convert to fraction form
   1,298,300.63/1,791,621.86 = 725,345.10/x
3. Step 3: Cross multiply
   1,298,300.63x = 1,791,621.86 × 725,345.10
4. Step 4: Simplify right side
   1,298,300.63x = 1,299,544,133,577.16
5. Step 5: Solve for x
   x = 1,299,544,133,577.16/1,298,300.63
6. Step 6: Final answer
   x = 1,000,957.80