Finding the Fourth Proportional to 1,005,603.49, 1,387,703.61 and 570,061.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,603.49 : 1,387,703.61 = 570,061.24 : x
2. Step 2: Convert to fraction form
   1,005,603.49/1,387,703.61 = 570,061.24/x
3. Step 3: Cross multiply
   1,005,603.49x = 1,387,703.61 × 570,061.24
4. Step 4: Simplify right side
   1,005,603.49x = 791,076,037,199.82
5. Step 5: Solve for x
   x = 791,076,037,199.82/1,005,603.49
6. Step 6: Final answer
   x = 786,667.95